Greatest Common Factor of 31, 39, 57, 89

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

• Greatest Common Factor of 31, 39, 57, 89 by common division method
• Greatest Common Factor of 31, 39, 57, 89 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 39

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

1,3,13,39

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Greatest Common Factor

We found the factors 31,39,57,89 . The biggest common factor number is the GCF number.
So the greatest common factor 31,39,57,89 is 1.

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

• GCF of 98, 51, 20, 76
• GCF of 77, 61, 35, 27
• GCF of 81, 42, 36, 54
• GCF of 68, 85, 35, 85
• GCF of 69, 37, 72, 72

1. What is the GCF of 31, 39, 57, 89?

Answer: GCF of 31, 39, 57, 89 is 1.

2. How to Find the GCF of 31, 39, 57, 89

Answer: Greatest Common Factor(GCF) of 31, 39, 57, 89 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 39, 57, 89) = 1.