Question

which is prime number

Answer 1

a number which is divisible only by 1 and itself is a prime number

Answer 2

Hey mate:
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Here is yr answer ================================

If a no. haves only two factors (1 and itself), then the no. is a prime no.

Ex: 1,3,5,7,11,13,17,19,23,29,31.......

Hope it hlpzzz....