PRIME FACTORS OF 28
The prime factors of 28 are 2 and 7.
Factor trees can be used to identify the prime factors of a number. The diagram below shows the factor tree of 28.
Prime factors are the numbers at the endpoints. For 28, these numbers are 2 and 7.
The prime factorization of 28 is 22 × 7.
28 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.