Greatest Common Factor of 27, 21, 980

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

• Greatest Common Factor of 27, 21, 980 by common division method
• Greatest Common Factor of 27, 21, 980 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 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

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 27,21,980 . The biggest common factor number is the GCF number.
So the greatest common factor 27,21,980 is 1.

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

• GCF of 31, 72, 305
• GCF of 52, 40, 231
• GCF of 68, 65, 623
• GCF of 64, 97, 267
• GCF of 26, 63, 319

1. What is the GCF of 27, 21, 980?

Answer: GCF of 27, 21, 980 is 1.

2. How to Find the GCF of 27, 21, 980

Answer: Greatest Common Factor(GCF) of 27, 21, 980 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 21, 980) = 1.