Greatest Common Factor of 20, 19, 57, 540

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

• Greatest Common Factor of 20, 19, 57, 540 by common division method
• Greatest Common Factor of 20, 19, 57, 540 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 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 540

List of positive integer factors of 540 that divides 540 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,27,30,36,45,54,60,90,108,135,180,270,540

Greatest Common Factor

We found the factors 20,19,57,540 . The biggest common factor number is the GCF number.
So the greatest common factor 20,19,57,540 is 1.

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

• GCF of 24, 68, 46, 938
• GCF of 70, 80, 82, 952
• GCF of 65, 31, 75, 757
• GCF of 75, 71, 15, 970
• GCF of 15, 65, 96, 668

1. What is the GCF of 20, 19, 57, 540?

Answer: GCF of 20, 19, 57, 540 is 1.

2. How to Find the GCF of 20, 19, 57, 540

Answer: Greatest Common Factor(GCF) of 20, 19, 57, 540 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 19, 57, 540) = 1.