What is Logic for check prime no. ?

Question

give answer

Answer 1

A number is prime if it is larger than 1 and can only be divided evenly by 1 and itself.

Answer 2

try to divide this number by 2 and the odd numbers between 3 and sqrt( your number).
if the rest (of the division) of any of those division is 0, it is a prime number.

PS.: Do not divide the number by itself, because the rest of the division will be 0
https://code.sololearn.com/cHG049yX9kHx/?ref=app

Answer 3

https://code.sololearn.com/c6sos0V3zH3W/?ref=app