Question

what is different from the rest? ?
a) 57
b)131
c)133
d) 87

if you can solve then show me how did yOu solved IT..


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Answer 1

$\huge\underline\mathtt\color{aqua}Answer$

131 .

Except 131 all numbers are composite ( non - prime ) .

Answer 2

$\huge\underline\mathfrak\color{blue}Answer$

Except 131 , all other numbers are non prime ...