Greatest Common Factor of 18, 12, 990

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

• Greatest Common Factor of 18, 12, 990 by common division method
• Greatest Common Factor of 18, 12, 990 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 x 3 = 6

Factors of 18

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

1,2,3,6,9,18

Factors of 12

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

1,2,3,4,6,12

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 18,12,990 . The biggest common factor number is the GCF number.
So the greatest common factor 18,12,990 is 6.

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

• GCF of 98, 71, 281
• GCF of 14, 95, 575
• GCF of 35, 16, 230
• GCF of 81, 77, 154
• GCF of 52, 49, 113

1. What is the GCF of 18, 12, 990?

Answer: GCF of 18, 12, 990 is 6.

2. How to Find the GCF of 18, 12, 990

Answer: Greatest Common Factor(GCF) of 18, 12, 990 = 6

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

Step 2: Then multiply all the prime factors GCF(18, 12, 990) = 6.