Greatest Common Factor of 12, 20, 509

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

• Greatest Common Factor of 12, 20, 509 by common division method
• Greatest Common Factor of 12, 20, 509 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 20

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

1,2,4,5,10,20

Factors of 509

List of positive integer factors of 509 that divides 509 without a remainder.

1,509

Greatest Common Factor

We found the factors 12,20,509 . The biggest common factor number is the GCF number.
So the greatest common factor 12,20,509 is 1.

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

• GCF of 99, 60, 966
• GCF of 39, 61, 817
• GCF of 80, 77, 514
• GCF of 20, 71, 633
• GCF of 84, 59, 762

1. What is the GCF of 12, 20, 509?

Answer: GCF of 12, 20, 509 is 1.

2. How to Find the GCF of 12, 20, 509

Answer: Greatest Common Factor(GCF) of 12, 20, 509 = 1

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

Step 2: Then multiply all the prime factors GCF(12, 20, 509) = 1.