Greatest Common Factor of 82, 20, 18, 31

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

• Greatest Common Factor of 82, 20, 18, 31 by common division method
• Greatest Common Factor of 82, 20, 18, 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 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

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 82,20,18,31 . The biggest common factor number is the GCF number.
So the greatest common factor 82,20,18,31 is 1.

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

• GCF of 62, 87, 29, 75
• GCF of 99, 49, 49, 11
• GCF of 21, 11, 29, 37
• GCF of 43, 88, 14, 29
• GCF of 96, 41, 55, 92

1. What is the GCF of 82, 20, 18, 31?

Answer: GCF of 82, 20, 18, 31 is 1.

2. How to Find the GCF of 82, 20, 18, 31

Answer: Greatest Common Factor(GCF) of 82, 20, 18, 31 = 1

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

Step 2: Then multiply all the prime factors GCF(82, 20, 18, 31) = 1.