Greatest Common Factor of 79, 21, 31, 189

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

• Greatest Common Factor of 79, 21, 31, 189 by common division method
• Greatest Common Factor of 79, 21, 31, 189 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 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Greatest Common Factor

We found the factors 79,21,31,189 . The biggest common factor number is the GCF number.
So the greatest common factor 79,21,31,189 is 1.

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

• GCF of 65, 87, 60, 773
• GCF of 60, 14, 49, 573
• GCF of 35, 30, 97, 153
• GCF of 19, 79, 82, 386
• GCF of 54, 53, 41, 496

1. What is the GCF of 79, 21, 31, 189?

Answer: GCF of 79, 21, 31, 189 is 1.

2. How to Find the GCF of 79, 21, 31, 189

Answer: Greatest Common Factor(GCF) of 79, 21, 31, 189 = 1

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

Step 2: Then multiply all the prime factors GCF(79, 21, 31, 189) = 1.