Hi all,
So I have a general question.
If say 7 is put to a power of x (some exponent) and the tens digit is 0. How can we know if it would be a multiple of say 4?
I realize that the pattern is as follows:
7
49
343
2401
16807
...49
...43
...01
...07
So the only time the tens digit is 0 is when 7 is in powers of 4 or 5 and then it repeats every two jumps. The numbers get nasty quick though, so if I were to try and determine if these guys would be multiples of anything, in my case let's say 4... how can we tell?
Thank you!![]()
So I have a general question.
If say 7 is put to a power of x (some exponent) and the tens digit is 0. How can we know if it would be a multiple of say 4?
I realize that the pattern is as follows:
7
49
343
2401
16807
...49
...43
...01
...07
So the only time the tens digit is 0 is when 7 is in powers of 4 or 5 and then it repeats every two jumps. The numbers get nasty quick though, so if I were to try and determine if these guys would be multiples of anything, in my case let's say 4... how can we tell?
Thank you!