Greatest Common Factor of 77, 57, 20, 560

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

• Greatest Common Factor of 77, 57, 20, 560 by common division method
• Greatest Common Factor of 77, 57, 20, 560 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 77

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

1,7,11,77

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 20

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

1,2,4,5,10,20

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 77,57,20,560 . The biggest common factor number is the GCF number.
So the greatest common factor 77,57,20,560 is 1.

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

• GCF of 13, 89, 16, 637
• GCF of 50, 56, 67, 878
• GCF of 92, 37, 24, 575
• GCF of 50, 27, 31, 136
• GCF of 32, 49, 96, 869

1. What is the GCF of 77, 57, 20, 560?

Answer: GCF of 77, 57, 20, 560 is 1.

2. How to Find the GCF of 77, 57, 20, 560

Answer: Greatest Common Factor(GCF) of 77, 57, 20, 560 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 57, 20, 560) = 1.