Prime factors of 18 are 2 and 3 Prime factors of 45 are 3 and 5
The factors of 45 are 1, 3, 5, 9, 15, 45 Of those, 3 and 5 are prime numbers. The prime factors of 45 are 3 and 5.
prime numbers have only factors of themselves and 1; therefore 45 is composite--it has factors of 1,3,5,9,15,45
3 and 5
3 and 5
Distinct prime factors are 3 and 5.
As a product of its prime factors: 3*3*5 = 45 Or as: 23+19+3 = 45
45 and 64 are not prime numbers because they both have more than two factors
The first step to finding the common prime factors is to list the prime factors of both numbers. For 12 and 45, the prime factors are: 12 = 2x2x3 45 = 3x3x5 The next step is to identify which prime factors are shared by both. In this case, both use a 3. Thus, 3 is the only common prime factor of 12 and 45.
Prime numbers are prime factors.
The product of two prime numbers can never be another prime number, the numbers that you multiplied are factors of the product. (example, 9 times 5 is 45, 9 and 5 go into 45)
The prime factors of 45 are 3 and 5. Among the factors of 45, (3,5) and (5,9) are co-prime.