Greatest Common Factor of 77, 21, 560

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

• Greatest Common Factor of 77, 21, 560 by common division method
• Greatest Common Factor of 77, 21, 560 with matching the biggest common factor

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∴ So the GCF of the given numbers is 7 = 7

Factors of 77

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

1,7,11,77

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 560

List of positive integer factors of 560 that divides 560 without a remainder.

1,2,4,5,7,8,10,14,16,20,28,35,40,56,70,80,112,140,280,560

Greatest Common Factor

We found the factors 77,21,560 . The biggest common factor number is the GCF number.
So the greatest common factor 77,21,560 is 7.

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

• GCF of 43, 20, 986
• GCF of 23, 55, 230
• GCF of 18, 47, 413
• GCF of 56, 63, 770
• GCF of 12, 14, 958

1. What is the GCF of 77, 21, 560?

Answer: GCF of 77, 21, 560 is 7.

2. How to Find the GCF of 77, 21, 560

Answer: Greatest Common Factor(GCF) of 77, 21, 560 = 7

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

Step 2: Then multiply all the prime factors GCF(77, 21, 560) = 7.