Greatest Common Factor of 20, 60, 217

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

• Greatest Common Factor of 20, 60, 217 by common division method
• Greatest Common Factor of 20, 60, 217 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 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Factors of 217

List of positive integer factors of 217 that divides 217 without a remainder.

1,7,31,217

Greatest Common Factor

We found the factors 20,60,217 . The biggest common factor number is the GCF number.
So the greatest common factor 20,60,217 is 1.

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

• GCF of 59, 68, 352
• GCF of 88, 97, 504
• GCF of 34, 95, 349
• GCF of 81, 27, 963
• GCF of 91, 38, 989

1. What is the GCF of 20, 60, 217?

Answer: GCF of 20, 60, 217 is 1.

2. How to Find the GCF of 20, 60, 217

Answer: Greatest Common Factor(GCF) of 20, 60, 217 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 60, 217) = 1.