Greatest Common Factor of 31, 73, 68, 138

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

• Greatest Common Factor of 31, 73, 68, 138 by common division method
• Greatest Common Factor of 31, 73, 68, 138 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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Greatest Common Factor

We found the factors 31,73,68,138 . The biggest common factor number is the GCF number.
So the greatest common factor 31,73,68,138 is 1.

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

• GCF of 79, 25, 95, 225
• GCF of 71, 64, 56, 301
• GCF of 70, 26, 62, 948
• GCF of 43, 22, 51, 891
• GCF of 32, 42, 68, 938

1. What is the GCF of 31, 73, 68, 138?

Answer: GCF of 31, 73, 68, 138 is 1.

2. How to Find the GCF of 31, 73, 68, 138

Answer: Greatest Common Factor(GCF) of 31, 73, 68, 138 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 73, 68, 138) = 1.