2007-01-19 04:17:03 · 6 answers · asked by mgm 1 in Science & Mathematics ➔ Mathematics
Actually "Says Me" 0-9 leaves 10 possibilities. So it would be
10 * 10 * 10 * 10 or 10,000 possibilities.
Now if you can't reuse number then it would be
10 * 9 * 8 * 7 or 5040 possibilities
Hope that helps...Good Luck with your math
2007-01-19 04:22:03 · answer #1 · answered by Chaney34 5 · 2⤊ 0⤋
If your password conists solely of 4 numerical digits strung together, then there are 10 possibilities for the first digit, 10 for second, etc. The answer is 10*10*10*10 = 10,000.
Another way to think of this is that the 4 digits create a number from "0000" to "9999". This would be the same if the numbers could go from "0001" to "10,000", so there are 10,000 combinations.
2007-01-19 04:54:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
if you can repeat numbers the possibilities are 10^4.
If you cant repeat numbers each combination of ten numbers taken by four can be permutated by 4!
In this case the possibilities are 10*9*8*7/4! *4! =5040 instead of
10.000.
2007-01-19 05:09:22 · answer #3 · answered by santmann2002 7 · 0⤊ 0⤋
The first digit can be: 0,1,2,3,...,9 (which is ten possible numbers)
The second digit can be: 0,1,2,3,...,9 (which is ten possible numbers) etc.
Now you calculate 10^4 which is 10000. (4 because you have 4 digits)
2007-01-19 04:57:33 · answer #4 · answered by Bill 1 · 0⤊ 0⤋
10^4 = 10,000
2007-01-19 04:25:59 · answer #5 · answered by Cu Den 2 · 1⤊ 0⤋
9x9x9x9
( what no 0 - but isn't that nothing ! - I can see it's going to be one of THOSE Fridays - good thing I'm at work where i can't do any harm - now where was that emergency coolant valve ? LOL )
2007-01-19 04:20:20 · answer #6 · answered by Anonymous · 0⤊ 2⤋