Greatest Common Factor of 660, 209, 990

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

• Greatest Common Factor of 660, 209, 990 by common division method
• Greatest Common Factor of 660, 209, 990 with matching the biggest common factor

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∴ So the GCF of the given numbers is 11 = 11

Factors of 660

List of positive integer factors of 660 that divides 660 without a remainder.

1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660

Factors of 209

List of positive integer factors of 209 that divides 209 without a remainder.

1,11,19,209

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 660,209,990 . The biggest common factor number is the GCF number.
So the greatest common factor 660,209,990 is 11.

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

• GCF of 259, 524, 201
• GCF of 140, 644, 209
• GCF of 262, 972, 324
• GCF of 385, 286, 499
• GCF of 933, 914, 909

1. What is the GCF of 660, 209, 990?

Answer: GCF of 660, 209, 990 is 11.

2. How to Find the GCF of 660, 209, 990

Answer: Greatest Common Factor(GCF) of 660, 209, 990 = 11

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

Step 2: Then multiply all the prime factors GCF(660, 209, 990) = 11.