SSC Government Jobs Exams Numerical Ability Arithmetic

The last digit, that is, the digit in the unit’s place of the number [(57)^25 — 1] is?

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The last digit [(57)^25 + 1]
divide 25 by 4 and get remainder is 1.
=== 7^1+1
==7+1= 8
the ans is 8
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