Posted by **y912f** on Wednesday, February 15, 2012 at 3:50pm.

How many 4 digit combinations can you get using numbers 0-9..?

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**bobpursley**, Wednesday, February 15, 2012 at 4:06pm
If zero is allowed to be a leading digit, then

10*10*10*10 if numbers can be repeated.

- random -
**y912f**, Wednesday, February 15, 2012 at 4:12pm
Yeah, I figured it's 10,000..but I'm trying to see if there are all 10,000 combinations online somewhere. I doubt it though.

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**bobpursley**, Wednesday, February 15, 2012 at 4:17pm
you can write them down in a few hours.

start with

0000

0001

0002, and so on. Have fun.

- random -
**y912f**, Wednesday, February 15, 2012 at 4:36pm
I tried, It just confused me even more haha

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