Greatest Common Factor of 31, 61, 78, 60

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

• Greatest Common Factor of 31, 61, 78, 60 by common division method
• Greatest Common Factor of 31, 61, 78, 60 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Greatest Common Factor

We found the factors 31,61,78,60 . The biggest common factor number is the GCF number.
So the greatest common factor 31,61,78,60 is 1.

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

• GCF of 71, 20, 68, 79
• GCF of 60, 16, 47, 22
• GCF of 32, 35, 10, 51
• GCF of 20, 80, 43, 11
• GCF of 16, 46, 11, 10

1. What is the GCF of 31, 61, 78, 60?

Answer: GCF of 31, 61, 78, 60 is 1.

2. How to Find the GCF of 31, 61, 78, 60

Answer: Greatest Common Factor(GCF) of 31, 61, 78, 60 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 61, 78, 60) = 1.