Greatest Common Factor of 198, 663, 18

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

• Greatest Common Factor of 198, 663, 18 by common division method
• Greatest Common Factor of 198, 663, 18 with matching the biggest common factor

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

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 663

List of positive integer factors of 663 that divides 663 without a remainder.

1,3,13,17,39,51,221,663

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 198,663,18 . The biggest common factor number is the GCF number.
So the greatest common factor 198,663,18 is 3.

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

• GCF of 821, 521, 22
• GCF of 679, 565, 24
• GCF of 133, 494, 76
• GCF of 939, 726, 94
• GCF of 704, 274, 52

1. What is the GCF of 198, 663, 18?

Answer: GCF of 198, 663, 18 is 3.

2. How to Find the GCF of 198, 663, 18

Answer: Greatest Common Factor(GCF) of 198, 663, 18 = 3

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

Step 2: Then multiply all the prime factors GCF(198, 663, 18) = 3.