Greatest Common Factor of 20, 75, 109

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

• Greatest Common Factor of 20, 75, 109 by common division method
• Greatest Common Factor of 20, 75, 109 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 20

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

1,2,4,5,10,20

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 109

List of positive integer factors of 109 that divides 109 without a remainder.

1,109

Greatest Common Factor

We found the factors 20,75,109 . The biggest common factor number is the GCF number.
So the greatest common factor 20,75,109 is 1.

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

• GCF of 26, 83, 144
• GCF of 88, 10, 911
• GCF of 38, 22, 411
• GCF of 89, 81, 959
• GCF of 39, 30, 808

1. What is the GCF of 20, 75, 109?

Answer: GCF of 20, 75, 109 is 1.

2. How to Find the GCF of 20, 75, 109

Answer: Greatest Common Factor(GCF) of 20, 75, 109 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 75, 109) = 1.