Greatest Common Factor of 66, 56, 80, 85

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

• Greatest Common Factor of 66, 56, 80, 85 by common division method
• Greatest Common Factor of 66, 56, 80, 85 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Greatest Common Factor

We found the factors 66,56,80,85 . The biggest common factor number is the GCF number.
So the greatest common factor 66,56,80,85 is 1.

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

• GCF of 10, 48, 22, 80
• GCF of 69, 78, 78, 67
• GCF of 64, 83, 52, 35
• GCF of 47, 97, 54, 86
• GCF of 60, 39, 30, 29

1. What is the GCF of 66, 56, 80, 85?

Answer: GCF of 66, 56, 80, 85 is 1.

2. How to Find the GCF of 66, 56, 80, 85

Answer: Greatest Common Factor(GCF) of 66, 56, 80, 85 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 56, 80, 85) = 1.