SOLUTION: my daughter forgot her pin to her cell phone, she swears the numbers were the upper four of the keypad, 2,3,5,6. we are not sure in which combination though. Can you tell me how

Algebra ->  Permutations -> SOLUTION: my daughter forgot her pin to her cell phone, she swears the numbers were the upper four of the keypad, 2,3,5,6. we are not sure in which combination though. Can you tell me how       Log On


   

Question 878793: my daughter forgot her pin to her cell phone, she swears the numbers were the upper four of the keypad, 2,3,5,6. we are not sure in which combination though. Can you tell me how many combinations of these numbers there are? my guess was because there' four numbers, it would be something like 4x3x2x1=24 combinations of the numbers? is this correct? any way to generate a list of the possible numbers to begin our input attempts? Thanks so much, Greg Powell
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
assuming You know area code and first 3 numbers..
Last four: let's say those started with 5:
5236
5263
5326
5362
5623
5632
Yes on the 24, Do the other groupings of 6 for those beginning with 6, 3 & 2