Determine the units digit of 245^245.

Correct answer marked below

A

1

5

Correct

C

9

D

3

E

7

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Explanation

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Official Explanation

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To find the units digit of 245^245, we focus on the units digit of the base, which is 5. The units digit…

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T

ThomasOct 26, 2024

this helped me

C

ChahitaNov 24, 2024

appreciated!

What this question tests

Your grasp of exponent rules — multiplying and dividing powers, power-of-a-power, and negative/zero exponents.

Adding exponents when multiplying bases that have the same exponent, or confusing (x^a)^b with x^(a·b).

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