Question

7
^4k

≡ _____________ (mod 100)

1) 1 2) 2 3) 3 4) 4​

Answer 1

Answer:

Since every multiple of 4 can be represented as 4k , for some number k , we conclude 7^(4k) ≡ 1 (mod 100) . Hence the correct answer is option 1 .

Step-by-step explanation:

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