# Greatest Common Factor of 6 and 15

Greatest common factor (GCF) of 6 and 15 is 3.

GCF(6,15) = 3

We will now calculate the prime factors of 6 and 15, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6 and 15.

GCF Calculator and

## Prime Factorization of 6

Prime factors of 6 are 2, 3. Prime factorization of 6 in exponential form is:

6 = 21 × 31

## Prime Factorization of 15

Prime factors of 15 are 3, 5. Prime factorization of 15 in exponential form is:

15 = 31 × 51

### Factors of 6

List of positive integer factors of 6 that divides 6 without a remainder.

1, 2, 3

### Factors of 15

List of positive integer factors of 15 that divides 6 without a remainder.

1, 3, 5

### Greatest Common Factor

We found the factors and prime factorization of 6 and 15. The biggest common factor number is the GCF number.
So the greatest common factor 6 and 15 is 3.

Also check out the Least Common Multiple of 6 and 15

#### Related Greatest Common Factors of 15

wyatt 2019-10-25 15:03:55

cheating thank you

MRS.CANNON 2018-09-06 15:48:07

IM REALLY TRYING TO TEACH MY 6TH GRADERS THIS

Jaaliyah Davis 2018-09-06 15:46:53

IM REALLY WORKING ON THIS!!!!!!