Question

What are the prime number of 221

Answer 1

Answer: 221 is not a prime number, although its factors, 13 and 17 are both prime numbers.

Step-by-step explanation: 221 is not a prime number because it has four factors; 1, 13, 17 and 221, and for a number to be prime it can only have the factors of itself and 1.

For example, 5 is a prime number because it's only factors are 5 and 1, while 10 is not because it's factors are 1, 2, 5, and 10, making it not prime.