Greatest Common Factor of 66, 77, 990

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

• Greatest Common Factor of 66, 77, 990 by common division method
• Greatest Common Factor of 66, 77, 990 with matching the biggest common factor

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

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

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 66,77,990 . The biggest common factor number is the GCF number.
So the greatest common factor 66,77,990 is 11.

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

• GCF of 41, 80, 986
• GCF of 92, 22, 692
• GCF of 30, 20, 402
• GCF of 88, 20, 352
• GCF of 49, 42, 178

1. What is the GCF of 66, 77, 990?

Answer: GCF of 66, 77, 990 is 11.

2. How to Find the GCF of 66, 77, 990

Answer: Greatest Common Factor(GCF) of 66, 77, 990 = 11

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

Step 2: Then multiply all the prime factors GCF(66, 77, 990) = 11.