Greatest Common Factor of 66, 31, 77, 87

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

• Greatest Common Factor of 66, 31, 77, 87 by common division method
• Greatest Common Factor of 66, 31, 77, 87 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 77

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

1,7,11,77

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Greatest Common Factor

We found the factors 66,31,77,87 . The biggest common factor number is the GCF number.
So the greatest common factor 66,31,77,87 is 1.

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

• GCF of 91, 70, 92, 53
• GCF of 32, 44, 18, 98
• GCF of 79, 99, 22, 68
• GCF of 78, 37, 74, 87
• GCF of 36, 92, 39, 64

1. What is the GCF of 66, 31, 77, 87?

Answer: GCF of 66, 31, 77, 87 is 1.

2. How to Find the GCF of 66, 31, 77, 87

Answer: Greatest Common Factor(GCF) of 66, 31, 77, 87 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 31, 77, 87) = 1.