Greatest Common Factor of 21, 72, 36, 95, 31

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

• Greatest Common Factor of 21, 72, 36, 95, 31 by common division method
• Greatest Common Factor of 21, 72, 36, 95, 31 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 21

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

1,3,7,21

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 95

List of positive integer factors of 95 that divides 95 without a remainder.

1,5,19,95

Factors of 31

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

1,31

Greatest Common Factor

We found the factors 21,72,36,95,31 . The biggest common factor number is the GCF number.
So the greatest common factor 21,72,36,95,31 is 1.

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

• GCF of 67, 90, 76, 93, 39
• GCF of 63, 45, 54, 10, 38
• GCF of 98, 22, 44, 73, 38
• GCF of 15, 71, 22, 90, 23
• GCF of 84, 38, 66, 32, 99

1. What is the GCF of 21, 72, 36, 95, 31?

Answer: GCF of 21, 72, 36, 95, 31 is 1.

2. How to Find the GCF of 21, 72, 36, 95, 31

Answer: Greatest Common Factor(GCF) of 21, 72, 36, 95, 31 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 72, 36, 95, 31) = 1.