For 64, 2 is the only prime factor.
47 is already prime and is its only prime factor.
List all the factors of each number. Which factors are prime factors between 20 and 28.
The only prime factor of 64 is 2.
64 = 2x2x2x2x2x2
The only prime factor of 64 is 2.
Prime factors of 64 are 26 (2x2x2x2x2x2)
64 has only one prime factor: 2
The only prime factor of 64 is 2.
Prime factor is 2. Factors are 1, 2, 4, 8, 16, 32, 64
The factors of 64 are 1, 2, 4, 8, 16, 32 and 64
64 = 26
The prime factor of 64 is 2.
64 has only one prime factor which is 2.