Problem Solving (PS) | Re: What is the tens digit of 7^241?

What is the tens digit of 7^241 ?

7^1 = 7
7^2 = 49
7^3 = 343
7^4 = 2401

7^5 = 16807
7^6 =….49
7^7 =….43
7^8 = ….01


So the cycle repeats for tens digit as well ..

when 241 is divided by 4 ---> 1 is remainder --- so the 7^241 =XXX...07

So its tens digit is 0 ---Option A

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