If a number n is not a prime number, there must be several factors (not less than 2),
Assuming the smallest factor is p, then p*p <= n
So: p <root number np <root number np<Root number n
If a number n is not a prime number, there must be several factors (not less than 2),
Assuming the smallest factor is p, then p*p <= n
So: p <root number np <root number np<Root number n