Greatest Common Factor of 507, 189, 21

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

• Greatest Common Factor of 507, 189, 21 by common division method
• Greatest Common Factor of 507, 189, 21 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 507

List of positive integer factors of 507 that divides 507 without a remainder.

1,3,13,39,169,507

Factors of 189

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

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

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 507,189,21 . The biggest common factor number is the GCF number.
So the greatest common factor 507,189,21 is 3.

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

• GCF of 674, 769, 95
• GCF of 309, 109, 41
• GCF of 840, 644, 41
• GCF of 251, 615, 14
• GCF of 565, 668, 44

1. What is the GCF of 507, 189, 21?

Answer: GCF of 507, 189, 21 is 3.

2. How to Find the GCF of 507, 189, 21

Answer: Greatest Common Factor(GCF) of 507, 189, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(507, 189, 21) = 3.