Greatest Common Factor of 65, 40, 27, 31

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

• Greatest Common Factor of 65, 40, 27, 31 by common division method
• Greatest Common Factor of 65, 40, 27, 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 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

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 65,40,27,31 . The biggest common factor number is the GCF number.
So the greatest common factor 65,40,27,31 is 1.

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

• GCF of 68, 41, 19, 91
• GCF of 75, 73, 43, 55
• GCF of 43, 10, 23, 23
• GCF of 19, 23, 66, 85
• GCF of 72, 52, 54, 14

1. What is the GCF of 65, 40, 27, 31?

Answer: GCF of 65, 40, 27, 31 is 1.

2. How to Find the GCF of 65, 40, 27, 31

Answer: Greatest Common Factor(GCF) of 65, 40, 27, 31 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 40, 27, 31) = 1.