Problem Solving (PS) | Re: What is the unit digit of 3^5 + 4^5 + 5^5 + 6^5 ?

3^5+4^5+5^5+6^5

Cyclicity of 3^5 is 3

Cyclicity of 4^5 is 4

Cyclicity of 5^5 is 5

Cyclicity of 6^5 is 6

3+4+5+6=18

so unit digit of the expression is 8

Statistics : Posted by RohitKakkar • on 22 Jan 2023, 00:52 • Replies 1 • Views 107

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