Lock Picking 101
Lockpicking, Locksmithing, Locksport, Locks and Picks
       

Lock Picking 101
Login
Profile
FAQ
Members
Search
View New Posts
Live LP101 IRC Chat!

Lock Pick 
Shop


Lock Picking Information
FAQ & General Information
Got Beginner Questions?
Pick-Fu [Intermediate Level]


Ask a Locksmith
This Old Lock
This Old Safe
What Lock Should I Buy?



Lockpicking Hardware
Locks
Lock Picks
Lock Bumping
Lock Pick Guns, Snappers
European Locks & Picks
The Open Source Lock

Off Topic
General Chatter
Bondage and Handcuffs


Locksmith Business Info
Running a Business
Key Machines
Close that door!
Life Safety Compliance
Electronic Locks & Access
Locksmith Supplies
Locksmith Lounge


Buy Sell Trade
Buy - Sell - Trade
It came from Ebay!


Advanced Topics
Advanced Topics Access
Safes & Safe Locks
Automotive Entry & Tools
High Security Locks
Advanced Lock Pick Tools
Advanced Buy/Sell/Trade



Locksport Groups
Locksport Local
Chapter President's Office
Locksport Board Room


 

Combinations 0-9 (4 Digit)

Having read the FAQ's you are still unfulfilled and seek more enlightenment, so post your general questions here.

Moderators: zeke79, Squelchtone

Combinations 0-9 (4 Digit)

Postby nyana » Mon Mar 03, 2008 7:01 pm

So theoretically a Sentry safe has a digital lock system, with keypads of numbers 0-9....the combination maximum limit is four digits. How many possible combinations of numbers could come out of this? Can someone give me advice, a program to use to calculate all possible combinations? How many, essentially would there be?

0-1-2-3-4-5-6-7-8-9

FULL COMBINATION IS FOUR DIGITS LONG, so how many combinations could those numerics make, and what would they be? IS there some sort of program I can use, or tool to get every possible outcome of these numbers, in four digit length?

Thanks, and take care.
dream
nyana
 
Posts: 1
Joined: Mon Mar 03, 2008 6:55 pm

Postby cjames73 » Mon Mar 03, 2008 7:29 pm

hi nyana, welcome to the site.
discussions on safe opening are restricted to the advanced forums only.
Image
cjames73
Supporter
Supporter
 
Posts: 704
Joined: Thu Dec 28, 2006 11:33 am
Location: launceston, cornwall, uk

Postby Urbex » Tue Mar 04, 2008 12:29 am

If I did the math correctly, 362880 possible combinations.

You will be sitting there for a long, long, long time.
Urbex
 
Posts: 105
Joined: Sat Feb 16, 2008 1:30 pm
Location: Eastern MA USA

Re: Combinations 0-9 (4 Digit)

Postby keysman » Tue Mar 04, 2008 12:53 am

nyana wrote:

IS there some sort of program I can use, or tool to get every possible outcome of these numbers, in four digit length?



Yes there is tool.. been around for centuries

Pencil + paper (Lines make it a little easier but not necessary)
Take sharp pencil write 0000 on the paper
next line write 0001
next line write 0002

continue on until you have written down all possible 4 digit combinations
sharpen pencil as necessary.
Everyone who eats potatoes eventually dies. Therefore potatoes are poisonous.
keysman
 
Posts: 1176
Joined: Wed Dec 29, 2004 6:09 pm
Location: Las Vegas,Nv.USA

Postby Safety0ff » Tue Mar 04, 2008 1:14 am

Urbex wrote:If I did the math correctly, 362880 possible combinations.

I got a much smaller number than that because there's 10 possible digits and 4 slots or there's 10 possible digits and 1 to 4 slots. I know where you got that answer from: 9!=9*8*7*6*5*4*3*2*1=362880
Problems with your math:
-0 is a digit don't forget to count it.
-Assumes the same digit isn't used twice.
-Allows for 9 digit combination.
Image
Safety0ff
 
Posts: 618
Joined: Sat Nov 18, 2006 9:22 am
Location: Ontario, Canada

Postby poor paperclip picker » Tue Mar 04, 2008 1:32 am

Safety0ff wrote:
Urbex wrote:If I did the math correctly, 362880 possible combinations.

I got a much smaller number than that because there's 10 possible digits and 4 slots or there's 10 possible digits and 1 to 4 slots. I know where you got that answer from: 9!=9*8*7*6*5*4*3*2*1=362880
Problems with your math:
-0 is a digit don't forget to count it.
-Assumes the same digit isn't used twice.
-Allows for 9 digit combination.


if all that is true, which i took in account, you should get a larger number than 362880, not a smaller number. I got 1048576.
Image
poor paperclip picker
 
Posts: 287
Joined: Thu Aug 16, 2007 3:28 am
Location: Colorado, USA

Postby Safety0ff » Tue Mar 04, 2008 2:01 am

poor paperclip picker wrote:if all that is true, which i took in account, you should get a larger number than 362880, not a smaller number. I got 1048576.

I think you might have inverted your exponent/power with your base :wink:.
Image
Safety0ff
 
Posts: 618
Joined: Sat Nov 18, 2006 9:22 am
Location: Ontario, Canada

Postby poor paperclip picker » Tue Mar 04, 2008 2:09 am

Safety0ff wrote:
poor paperclip picker wrote:if all that is true, which i took in account, you should get a larger number than 362880, not a smaller number. I got 1048576.

I think you might have inverted your exponent/power with your base :wink:.


yeah I couldn't remember which one went where... oops my bad :oops:

but it makes sense to me, number of slots with number of possible digits... I don't know its been awhile since my algebra days..
Image
poor paperclip picker
 
Posts: 287
Joined: Thu Aug 16, 2007 3:28 am
Location: Colorado, USA

Postby poor paperclip picker » Tue Mar 04, 2008 2:11 am

i guess either way there is going to be a lot of combos... so nyana do not try breaking into the safe...
Image
poor paperclip picker
 
Posts: 287
Joined: Thu Aug 16, 2007 3:28 am
Location: Colorado, USA

Postby Safety0ff » Tue Mar 04, 2008 2:29 am

Who says it'll let you try all the combos anyways.
Image
Safety0ff
 
Posts: 618
Joined: Sat Nov 18, 2006 9:22 am
Location: Ontario, Canada

Postby keysman » Tue Mar 04, 2008 2:54 am

poor paperclip picker wrote:=362880


if all that is true, which i took in account, you should get a larger number than 362880, not a smaller number. I got 1048576.[/quote]

Urbex wrote:If I did the math correctly, 362880 possible combinations.

You will be sitting there for a long, long, long time.


Hold on ! If there can only be 4 digits than the largest # will be 9999 starting at 0000 that leaves 10,0000 possible combinations not 362K or more
Everyone who eats potatoes eventually dies. Therefore potatoes are poisonous.
keysman
 
Posts: 1176
Joined: Wed Dec 29, 2004 6:09 pm
Location: Las Vegas,Nv.USA

Postby Safety0ff » Tue Mar 04, 2008 3:12 am

keysman wrote:Hold on ! If there can only be 4 digits than the largest # will be 9999 starting at 0000 that leaves 10,0000 possible combinations not 362K or more

Precisely. I was just correcting the other ppl but I didn't want to help nyana. It's quite simple to find out how many possible combo's there is whether using mathematical methods or rationalising it as you have.
I knew it was 10k. Proof:
Safety0ff wrote:I think you might have inverted your exponent/power with your base :wink: .

4^10=1 048 576
10^4= 10 000
If you look at it as 4 is the maximum number of digit then the answer is:
10^4+10^3+10^2+10=11 110.
Image
Safety0ff
 
Posts: 618
Joined: Sat Nov 18, 2006 9:22 am
Location: Ontario, Canada

Postby Urbex » Tue Mar 04, 2008 10:17 am

Well I tried, but it doesn't matter...

It's still going to be a ridiculous amount of combinations.
Urbex
 
Posts: 105
Joined: Sat Feb 16, 2008 1:30 pm
Location: Eastern MA USA

Postby mcm151201 » Tue Mar 04, 2008 11:34 am

Not to mention that the safe will lock out for a while after a certain number of incorrect attempts are made, so sitting at it trying all possible combinations would take and exceedingly massive amount of time. Theoretically of course :roll:
mcm151201
Moderator
 
Posts: 1483
Joined: Tue Jan 13, 2004 11:02 am

Postby FFVison » Wed Mar 05, 2008 11:33 am

10 possible digits per wheel: 0...9

for each digit of the combination, you multiply the numbers together, so for a 2 digit combination, it's 10 * 10 or 100. For 3 digits, it's 10 * 10 * 10 which is 1000. This pattern could be simplified by the following equation (number of digits)^(number of wheels you need to turn to the correct digit). If you are only working with wheels with 10 digits going from 0 to 9, it should be easy to figure out. The working combination is a 4 digit number with a value somewhere between 0000 and 9999, so you have exactly 10,000 possible combinations. After typing for a bit, I realized that you are dealing with pushing buttons to get the number, not turning wheels, but it's the same principle for figuring out the maximum number of combinations.
FFVison
 
Posts: 161
Joined: Wed Aug 08, 2007 7:53 pm
Location: Cleveland, OH, USA

Next

Return to Got Questions? - Ask Beginner Hobby Lockpicking Questions Here

Who is online

Users browsing this forum: Baidu [Spider], Bing [Bot] and 5 guests