Greatest Common Factor of 69, 12, 31, 18

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

• Greatest Common Factor of 69, 12, 31, 18 by common division method
• Greatest Common Factor of 69, 12, 31, 18 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 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 31

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

1,31

Factors of 18

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

1,2,3,6,9,18

Greatest Common Factor

We found the factors 69,12,31,18 . The biggest common factor number is the GCF number.
So the greatest common factor 69,12,31,18 is 1.

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

• GCF of 21, 42, 85, 53
• GCF of 48, 68, 47, 13
• GCF of 30, 43, 95, 14
• GCF of 13, 48, 19, 77
• GCF of 83, 15, 39, 10

1. What is the GCF of 69, 12, 31, 18?

Answer: GCF of 69, 12, 31, 18 is 1.

2. How to Find the GCF of 69, 12, 31, 18

Answer: Greatest Common Factor(GCF) of 69, 12, 31, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(69, 12, 31, 18) = 1.