A number theory problem by Tammu Triveni

Number Theory Level 2

Find the units digit of 437 5 32 + 368 2 4004 4375^{32}+3682^{4004} .


The answer is 1.

Tammu Triveni by Tammu Triveni , 26, India

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1 solution

Rahul Shah
Jun 29, 2014

last digit of 4375^32 must be 5 similarly last digit of 3682^4004 must be 6 therefore 5+6=11 and answer is 1.

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