Greatest Common Factor of 15, 79, 21, 386

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

• Greatest Common Factor of 15, 79, 21, 386 by common division method
• Greatest Common Factor of 15, 79, 21, 386 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 15

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

1,3,5,15

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 386

List of positive integer factors of 386 that divides 386 without a remainder.

1,2,193,386

Greatest Common Factor

We found the factors 15,79,21,386 . The biggest common factor number is the GCF number.
So the greatest common factor 15,79,21,386 is 1.

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

• GCF of 90, 47, 79, 930
• GCF of 97, 96, 15, 836
• GCF of 64, 19, 53, 510
• GCF of 81, 47, 85, 279
• GCF of 19, 74, 16, 600

1. What is the GCF of 15, 79, 21, 386?

Answer: GCF of 15, 79, 21, 386 is 1.

2. How to Find the GCF of 15, 79, 21, 386

Answer: Greatest Common Factor(GCF) of 15, 79, 21, 386 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 79, 21, 386) = 1.