Greatest Common Factor of 78, 47, 54, 20, 34

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

• Greatest Common Factor of 78, 47, 54, 20, 34 by common division method
• Greatest Common Factor of 78, 47, 54, 20, 34 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 47

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

1,47

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 20

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

1,2,4,5,10,20

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Greatest Common Factor

We found the factors 78,47,54,20,34 . The biggest common factor number is the GCF number.
So the greatest common factor 78,47,54,20,34 is 1.

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

• GCF of 37, 84, 48, 26, 78
• GCF of 63, 99, 12, 29, 55
• GCF of 56, 41, 89, 35, 49
• GCF of 35, 34, 49, 61, 38
• GCF of 86, 66, 52, 79, 95

1. What is the GCF of 78, 47, 54, 20, 34?

Answer: GCF of 78, 47, 54, 20, 34 is 1.

2. How to Find the GCF of 78, 47, 54, 20, 34

Answer: Greatest Common Factor(GCF) of 78, 47, 54, 20, 34 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 47, 54, 20, 34) = 1.