Greatest Common Factor of 66, 18, 686

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

• Greatest Common Factor of 66, 18, 686 by common division method
• Greatest Common Factor of 66, 18, 686 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

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 18

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

1,2,3,6,9,18

Factors of 686

List of positive integer factors of 686 that divides 686 without a remainder.

1,2,7,14,49,98,343,686

Greatest Common Factor

We found the factors 66,18,686 . The biggest common factor number is the GCF number.
So the greatest common factor 66,18,686 is 2.

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

• GCF of 48, 58, 200
• GCF of 66, 70, 959
• GCF of 90, 72, 745
• GCF of 13, 76, 454
• GCF of 40, 16, 413

1. What is the GCF of 66, 18, 686?

Answer: GCF of 66, 18, 686 is 2.

2. How to Find the GCF of 66, 18, 686

Answer: Greatest Common Factor(GCF) of 66, 18, 686 = 2

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

Step 2: Then multiply all the prime factors GCF(66, 18, 686) = 2.