Greatest Common Factor of 15, 21, 539

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

• Greatest Common Factor of 15, 21, 539 by common division method
• Greatest Common Factor of 15, 21, 539 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 21

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

1,3,7,21

Factors of 539

List of positive integer factors of 539 that divides 539 without a remainder.

1,7,11,49,77,539

Greatest Common Factor

We found the factors 15,21,539 . The biggest common factor number is the GCF number.
So the greatest common factor 15,21,539 is 1.

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

• GCF of 95, 65, 752
• GCF of 25, 10, 955
• GCF of 42, 36, 944
• GCF of 59, 60, 650
• GCF of 18, 16, 457

1. What is the GCF of 15, 21, 539?

Answer: GCF of 15, 21, 539 is 1.

2. How to Find the GCF of 15, 21, 539

Answer: Greatest Common Factor(GCF) of 15, 21, 539 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 21, 539) = 1.