GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 15, 20, 25 i.e. 5 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 15, 20, 25 is **5**.

GCF(15, 20, 25) = 5

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

- Greatest Common Factor of 15, 20, 25 by common division method
- Greatest Common Factor of 15, 20, 25 with matching the biggest common factor

5 | 15, 20, 25 |

3, 4, 5 |

∴ So the GCF of the given numbers is 5 = 5

**Factors of 15**

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

1,3,5,15

**Factors of 20**

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

**Factors of 25**

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

**Greatest Common Factor**

We found the factors 15,20,25 . The biggest common factor number is the **GCF** number.

So the **greatest common factor 15,20,25 ** is **5**.

Here are some samples of GCF of two or more Numbers calculations.

1. What is the GCF of 15, 20, 25?

Answer: GCF of 15, 20, 25 is 5.

2. How to Find the GCF of 15, 20, 25

Answer: Greatest Common Factor(GCF) of 15, 20, 25 = 5

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(15, 20, 25) = 5.