Can anyone help with this question what could be the easiest approach?
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13 will follow a pattern of 3, 9, 7, 1 in the units digits
So, the units digit of the17th power will be first in the pattern, which is 3
Similarly, 17 follows a pattern of 7, 9, 3, 1 in the units digits
so, the units digit of the 13th power will be first in the pattern, which is 7
If you add the units digits of both numbers, you get 10, you can say that the units digit becomes 0
Hence, it is divisible and 10, and the remainder is 0.
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