Greatest Common Factor of 20, 62, 34, 638

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

• Greatest Common Factor of 20, 62, 34, 638 by common division method
• Greatest Common Factor of 20, 62, 34, 638 with matching the biggest common factor

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

Factors of 20

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

1,2,4,5,10,20

Factors of 62

List of positive integer factors of 62 that divides 62 without a remainder.

1,2,31,62

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Greatest Common Factor

We found the factors 20,62,34,638 . The biggest common factor number is the GCF number.
So the greatest common factor 20,62,34,638 is 2.

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

• GCF of 75, 29, 22, 994
• GCF of 42, 41, 87, 643
• GCF of 16, 67, 70, 339
• GCF of 63, 33, 43, 654
• GCF of 29, 99, 80, 644

1. What is the GCF of 20, 62, 34, 638?

Answer: GCF of 20, 62, 34, 638 is 2.

2. How to Find the GCF of 20, 62, 34, 638

Answer: Greatest Common Factor(GCF) of 20, 62, 34, 638 = 2

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

Step 2: Then multiply all the prime factors GCF(20, 62, 34, 638) = 2.