Greatest Common Factor of 20, 77, 672

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

• Greatest Common Factor of 20, 77, 672 by common division method
• Greatest Common Factor of 20, 77, 672 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 20

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

1,2,4,5,10,20

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

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 20,77,672 . The biggest common factor number is the GCF number.
So the greatest common factor 20,77,672 is 1.

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

• GCF of 61, 32, 113
• GCF of 39, 87, 630
• GCF of 75, 75, 732
• GCF of 10, 64, 671
• GCF of 14, 80, 290

1. What is the GCF of 20, 77, 672?

Answer: GCF of 20, 77, 672 is 1.

2. How to Find the GCF of 20, 77, 672

Answer: Greatest Common Factor(GCF) of 20, 77, 672 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 77, 672) = 1.