Factors of 15 are: 1 3 5 and 15 of which 3 and 5 are prime factors
The Prime Factors of 15 are 3, 5
When two or more numbers have one or more of the same primes as factors, those prime factors are called common prime factors. For example, the prime factors of 6 are 2 and 3, and the prime factors of 21 are 3 and 7, so 3 is a common prime factor of 6 and 21.
The factors of 15 are: 1, 3, 5, 15 The factors of 21 are: 1, 3, 7, 21 The factors of 33 are: 1, 3, 11, 33
The factors of 315 are: 1 3 5 7 9 15 21 35 45 63 105 315 The prime factors are: 3 x 3 x 5 x 7
The factors of -105 are 1, 3, 5, 7, 15, 21, 35, 105 and their negatives. The prime factors are 3, 5 and 7
The factors of 21 are: 1 3 7 21 The prime factors are: 3 and 7
1, 3, 7, 21 3 and 7 are prime.
factors of 21: 3, 7 prime factors of 21: 3, 7
The factors are 1, 3, 7 and 21. 3 and 7 are prime.
18 has prime factors 3 & 2 whereas 21 has prime factors 3 & 7.
The prime factors of 21 are 3,7.
The prime factors of 15 are 3 and 5.
12 (2x2x3)
The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
As a product of its prime factors: 3*7 = 21
The factors of 525 are: 1 3 5 7 15 21 25 35 75 105 175 525The prime factors are: 3, 5 and 7