Question

What will be the unit digit of the square of 71

Answer 1

$\huge\mathfrak\red{square\:of\:71}$

• ( 71 )²
• 71 × 71
• 5,041

as the square of 71 is $\mathfrak\purple{5,041}$. hence $\mathfrak\blue{1}$ is the unit digit.

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