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

Lock Picking 101
Login
Profile
FAQ
Members
Search
Lock Pick 
Shop


Information
FAQ & General Information
Locksmith Business
Pick-Fu - Do... Not try.
Got Questions?
General Chatter


Hardware
Automatic/Mechanical
Lockpicks - Manual
Locks
Eu Locks, Picks & Hardware
Buy - Sell - Trade

Advanced Locks
Advanced Locks Information
Combo, Electronic & Safes
Automotive Locks and Picks
High Security Locks
Advanced Lock Pick Tools


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

Featured Picks
Locksmiths
Locksmiths Forum
 

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: digital_blue, zeke79

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 Hobby Lockpicking Questions Here

Who is online

Users browsing this forum: No registered users and 2 guests