Greatest Common Factor of 66, 90, 642

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

• Greatest Common Factor of 66, 90, 642 by common division method
• Greatest Common Factor of 66, 90, 642 with matching the biggest common factor

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

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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Greatest Common Factor

We found the factors 66,90,642 . The biggest common factor number is the GCF number.
So the greatest common factor 66,90,642 is 6.

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

• GCF of 64, 59, 988
• GCF of 25, 20, 700
• GCF of 82, 67, 510
• GCF of 99, 54, 814
• GCF of 45, 59, 825

1. What is the GCF of 66, 90, 642?

Answer: GCF of 66, 90, 642 is 6.

2. How to Find the GCF of 66, 90, 642

Answer: Greatest Common Factor(GCF) of 66, 90, 642 = 6

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

Step 2: Then multiply all the prime factors GCF(66, 90, 642) = 6.