Greatest Common Factor of 31, 10, 76, 21

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

• Greatest Common Factor of 31, 10, 76, 21 by common division method
• Greatest Common Factor of 31, 10, 76, 21 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 31

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

1,31

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 31,10,76,21 . The biggest common factor number is the GCF number.
So the greatest common factor 31,10,76,21 is 1.

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

• GCF of 31, 92, 30, 96
• GCF of 77, 74, 92, 80
• GCF of 19, 92, 49, 97
• GCF of 51, 46, 43, 88
• GCF of 70, 72, 95, 82

1. What is the GCF of 31, 10, 76, 21?

Answer: GCF of 31, 10, 76, 21 is 1.

2. How to Find the GCF of 31, 10, 76, 21

Answer: Greatest Common Factor(GCF) of 31, 10, 76, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 10, 76, 21) = 1.