Greatest Common Factor of 78, 72, 51, 47

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

• Greatest Common Factor of 78, 72, 51, 47 by common division method
• Greatest Common Factor of 78, 72, 51, 47 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 78

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

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

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Greatest Common Factor

We found the factors 78,72,51,47 . The biggest common factor number is the GCF number.
So the greatest common factor 78,72,51,47 is 1.

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

• GCF of 78, 54, 24, 47
• GCF of 39, 12, 89, 20
• GCF of 29, 53, 14, 80
• GCF of 71, 75, 70, 17
• GCF of 60, 88, 73, 18

1. What is the GCF of 78, 72, 51, 47?

Answer: GCF of 78, 72, 51, 47 is 1.

2. How to Find the GCF of 78, 72, 51, 47

Answer: Greatest Common Factor(GCF) of 78, 72, 51, 47 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 72, 51, 47) = 1.