What are the prime factors of 45?
February 20th, 2023
##1, 3, 5##
factors of ##45##
##45times1##
##9times5##
##15times3##
A prime factor is a prime number. A prime number can only be divided by ##1## or itself.
##45## can still be factored into ##9times5## so it is not prime.
##9## can still be factored into ##3times3## so it is not prime.
##15## can still be factored into ##5times3## so it is not prime.
So only ##1,3, 5## are prime because their only factors are ##1## and the number itself.
