Question

Pleas explain
8. Find the greatest prime number that is required to test as a divisor whether
the following numbers are prime :
(b) 227
(a) 197​

Answer 1

Answer:

while finding divisors of any number you need the prime numbers till sqrt(of the given number). The prime number you need while factorization are [2,3,5,7,11,13] hence the largest prime number is 13.

Step-by-step explanation:

both numbers 227 197 are prime