Greatest Common Factor of 422, 690, 20

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

• Greatest Common Factor of 422, 690, 20 by common division method
• Greatest Common Factor of 422, 690, 20 with matching the biggest common factor

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

Factors of 422

List of positive integer factors of 422 that divides 422 without a remainder.

1,2,211,422

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Greatest Common Factor

We found the factors 422,690,20 . The biggest common factor number is the GCF number.
So the greatest common factor 422,690,20 is 2.

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

• GCF of 978, 367, 36
• GCF of 866, 340, 38
• GCF of 546, 772, 26
• GCF of 935, 560, 16
• GCF of 258, 621, 87

1. What is the GCF of 422, 690, 20?

Answer: GCF of 422, 690, 20 is 2.

2. How to Find the GCF of 422, 690, 20

Answer: Greatest Common Factor(GCF) of 422, 690, 20 = 2

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

Step 2: Then multiply all the prime factors GCF(422, 690, 20) = 2.