PRIME FACTORS OF 91
The prime factors of 91 are 7 and 13.
Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of 91.
Prime factors are the numbers at the endpoints. For 91, these numbers are 7 and 13.
The prime factorization of 91 is 7 × 13.
91 is a composite number.
A prime factor is a factor that is prime. Prime factors can be identified by checking the endpoints of a factor tree.