Greatest Common Factor of 79, 72, 15, 621

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

• Greatest Common Factor of 79, 72, 15, 621 by common division method
• Greatest Common Factor of 79, 72, 15, 621 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 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 621

List of positive integer factors of 621 that divides 621 without a remainder.

1,3,9,23,27,69,207,621

Greatest Common Factor

We found the factors 79,72,15,621 . The biggest common factor number is the GCF number.
So the greatest common factor 79,72,15,621 is 1.

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

• GCF of 79, 57, 29, 516
• GCF of 73, 50, 52, 764
• GCF of 46, 13, 32, 392
• GCF of 77, 20, 26, 281
• GCF of 45, 12, 51, 916

1. What is the GCF of 79, 72, 15, 621?

Answer: GCF of 79, 72, 15, 621 is 1.

2. How to Find the GCF of 79, 72, 15, 621

Answer: Greatest Common Factor(GCF) of 79, 72, 15, 621 = 1

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

Step 2: Then multiply all the prime factors GCF(79, 72, 15, 621) = 1.