Greatest Common Factor of 609, 198, 21

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

• Greatest Common Factor of 609, 198, 21 by common division method
• Greatest Common Factor of 609, 198, 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 609

List of positive integer factors of 609 that divides 609 without a remainder.

1,3,7,21,29,87,203,609

Factors of 198

List of positive integer factors of 198 that divides 198 without a remainder.

1,2,3,6,9,11,18,22,33,66,99,198

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 609,198,21 . The biggest common factor number is the GCF number.
So the greatest common factor 609,198,21 is 3.

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

• GCF of 368, 265, 85
• GCF of 489, 311, 77
• GCF of 735, 236, 70
• GCF of 340, 946, 93
• GCF of 479, 940, 57

1. What is the GCF of 609, 198, 21?

Answer: GCF of 609, 198, 21 is 3.

2. How to Find the GCF of 609, 198, 21

Answer: Greatest Common Factor(GCF) of 609, 198, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(609, 198, 21) = 3.