Greatest Common Factor of 20, 470, 138

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

• Greatest Common Factor of 20, 470, 138 by common division method
• Greatest Common Factor of 20, 470, 138 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 470

List of positive integer factors of 470 that divides 470 without a remainder.

1,2,5,10,47,94,235,470

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Greatest Common Factor

We found the factors 20,470,138 . The biggest common factor number is the GCF number.
So the greatest common factor 20,470,138 is 2.

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

• GCF of 50, 931, 510
• GCF of 98, 353, 367
• GCF of 11, 849, 860
• GCF of 14, 840, 362
• GCF of 55, 673, 367

1. What is the GCF of 20, 470, 138?

Answer: GCF of 20, 470, 138 is 2.

2. How to Find the GCF of 20, 470, 138

Answer: Greatest Common Factor(GCF) of 20, 470, 138 = 2

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

Step 2: Then multiply all the prime factors GCF(20, 470, 138) = 2.