Greatest Common Factor of 20, 85, 980

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

• Greatest Common Factor of 20, 85, 980 by common division method
• Greatest Common Factor of 20, 85, 980 with matching the biggest common factor

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∴ So the GCF of the given numbers is 5 = 5

Factors of 20

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

1,2,4,5,10,20

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 980

List of positive integer factors of 980 that divides 980 without a remainder.

1,2,4,5,7,10,14,20,28,35,49,70,98,140,196,245,490,980

Greatest Common Factor

We found the factors 20,85,980 . The biggest common factor number is the GCF number.
So the greatest common factor 20,85,980 is 5.

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

• GCF of 32, 54, 228
• GCF of 95, 38, 235
• GCF of 15, 65, 462
• GCF of 25, 39, 765
• GCF of 13, 91, 743

1. What is the GCF of 20, 85, 980?

Answer: GCF of 20, 85, 980 is 5.

2. How to Find the GCF of 20, 85, 980

Answer: Greatest Common Factor(GCF) of 20, 85, 980 = 5

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

Step 2: Then multiply all the prime factors GCF(20, 85, 980) = 5.