Greatest Common Factor of 6, 45, 30, 72

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

• Greatest Common Factor of 6, 45, 30, 72 by common division method
• Greatest Common Factor of 6, 45, 30, 72 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 6

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

1,2,3,6

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Greatest Common Factor

We found the factors 6,45,30,72 . The biggest common factor number is the GCF number.
So the greatest common factor 6,45,30,72 is 3.

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

• GCF of 5, 82, 48, 39
• GCF of 1, 97, 95, 17
• GCF of 2, 12, 33, 89
• GCF of 2, 19, 32, 30
• GCF of 1, 37, 92, 34

1. What is the GCF of 6, 45, 30, 72?

Answer: GCF of 6, 45, 30, 72 is 3.

2. How to Find the GCF of 6, 45, 30, 72

Answer: Greatest Common Factor(GCF) of 6, 45, 30, 72 = 3

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

Step 2: Then multiply all the prime factors GCF(6, 45, 30, 72) = 3.