ask yourself if anything can go into 57 or 111 (divided)
Chat with our AI personalities
prime factors for 111 = 3, 37
111 = 3*37
113 is a prime number. 111 and 115 are composites.
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 81 is composite, 111 is prime.
Prime numbers are numbers that can only be multiplied by 1 and itself (whole numbers only) to give the same result 49 (7x7) and 81 (9x9) are not a prime number (perfect squares actually) 111 and 97 are a prime number (find me two numbers that gives the same product without using the number 1)