Greatest Common Factor of 78, 20, 43, 6, 49

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

• Greatest Common Factor of 78, 20, 43, 6, 49 by common division method
• Greatest Common Factor of 78, 20, 43, 6, 49 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 20

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

1,2,4,5,10,20

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 6

List of positive integer factors of 6 that divides 6 without a remainder.

1,2,3,6

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Greatest Common Factor

We found the factors 78,20,43,6,49 . The biggest common factor number is the GCF number.
So the greatest common factor 78,20,43,6,49 is 1.

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

• GCF of 57, 30, 27, 4, 22
• GCF of 74, 52, 10, 4, 86
• GCF of 16, 81, 92, 5, 68
• GCF of 23, 44, 62, 2, 95
• GCF of 55, 29, 73, 3, 22

1. What is the GCF of 78, 20, 43, 6, 49?

Answer: GCF of 78, 20, 43, 6, 49 is 1.

2. How to Find the GCF of 78, 20, 43, 6, 49

Answer: Greatest Common Factor(GCF) of 78, 20, 43, 6, 49 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 20, 43, 6, 49) = 1.