Question

what is the units digit of 13^17+17^13

Answer 1

13^17/10 = 3^17/10 = (3^2)^8*3/10 = 9^8*3/10 = (-1)^8*3/10 = 3.

17^13/10 = 7^13/10 = (7^2)^6*7/10 = (49)^6*7/10 = (-1)^6*7/10 = 7.

Remainder = (3+7)/10 = 0.

Step-by-step explanation:

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Answer 2

Answer:

unit digit of 13 power 17 will be=3

unit digit of 17 Power 13 will be=7

Step-by-step explanation:

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