Greatest Common Factor of 39, 72, 17, 31, 23

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

• Greatest Common Factor of 39, 72, 17, 31, 23 by common division method
• Greatest Common Factor of 39, 72, 17, 31, 23 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 31

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

1,31

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Greatest Common Factor

We found the factors 39,72,17,31,23 . The biggest common factor number is the GCF number.
So the greatest common factor 39,72,17,31,23 is 1.

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

• GCF of 81, 70, 54, 53, 64
• GCF of 89, 79, 12, 30, 11
• GCF of 68, 79, 11, 87, 75
• GCF of 87, 73, 91, 38, 16
• GCF of 51, 84, 14, 89, 91

1. What is the GCF of 39, 72, 17, 31, 23?

Answer: GCF of 39, 72, 17, 31, 23 is 1.

2. How to Find the GCF of 39, 72, 17, 31, 23

Answer: Greatest Common Factor(GCF) of 39, 72, 17, 31, 23 = 1

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

Step 2: Then multiply all the prime factors GCF(39, 72, 17, 31, 23) = 1.