Greatest Common Factor of 78, 18, 666

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

• Greatest Common Factor of 78, 18, 666 by common division method
• Greatest Common Factor of 78, 18, 666 with matching the biggest common factor

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

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 18

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

1,2,3,6,9,18

Factors of 666

List of positive integer factors of 666 that divides 666 without a remainder.

1,2,3,6,9,18,37,74,111,222,333,666

Greatest Common Factor

We found the factors 78,18,666 . The biggest common factor number is the GCF number.
So the greatest common factor 78,18,666 is 6.

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

• GCF of 80, 77, 853
• GCF of 68, 46, 711
• GCF of 14, 69, 550
• GCF of 17, 85, 707
• GCF of 33, 40, 441

1. What is the GCF of 78, 18, 666?

Answer: GCF of 78, 18, 666 is 6.

2. How to Find the GCF of 78, 18, 666

Answer: Greatest Common Factor(GCF) of 78, 18, 666 = 6

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

Step 2: Then multiply all the prime factors GCF(78, 18, 666) = 6.