Greatest Common Factor of 18, 309, 990

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

• Greatest Common Factor of 18, 309, 990 by common division method
• Greatest Common Factor of 18, 309, 990 with matching the biggest common factor

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

Factors of 18

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

1,2,3,6,9,18

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Factors of 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Greatest Common Factor

We found the factors 18,309,990 . The biggest common factor number is the GCF number.
So the greatest common factor 18,309,990 is 3.

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

• GCF of 28, 604, 737
• GCF of 60, 747, 866
• GCF of 28, 792, 317
• GCF of 58, 376, 511
• GCF of 24, 251, 231

1. What is the GCF of 18, 309, 990?

Answer: GCF of 18, 309, 990 is 3.

2. How to Find the GCF of 18, 309, 990

Answer: Greatest Common Factor(GCF) of 18, 309, 990 = 3

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

Step 2: Then multiply all the prime factors GCF(18, 309, 990) = 3.