Greatest Common Factor of 645, 120, 672

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

• Greatest Common Factor of 645, 120, 672 by common division method
• Greatest Common Factor of 645, 120, 672 with matching the biggest common factor

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

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 120

List of positive integer factors of 120 that divides 120 without a remainder.

1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120

Factors of 672

List of positive integer factors of 672 that divides 672 without a remainder.

1,2,3,4,6,7,8,12,14,16,21,24,28,32,42,48,56,84,96,112,168,224,336,672

Greatest Common Factor

We found the factors 645,120,672 . The biggest common factor number is the GCF number.
So the greatest common factor 645,120,672 is 3.

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

• GCF of 295, 218, 600
• GCF of 450, 685, 773
• GCF of 232, 138, 920
• GCF of 409, 734, 369
• GCF of 204, 363, 632

1. What is the GCF of 645, 120, 672?

Answer: GCF of 645, 120, 672 is 3.

2. How to Find the GCF of 645, 120, 672

Answer: Greatest Common Factor(GCF) of 645, 120, 672 = 3

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

Step 2: Then multiply all the prime factors GCF(645, 120, 672) = 3.