Greatest Common Factor of 21, 71, 85, 179

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

• Greatest Common Factor of 21, 71, 85, 179 by common division method
• Greatest Common Factor of 21, 71, 85, 179 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 21

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

1,3,7,21

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 85

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

1,5,17,85

Factors of 179

List of positive integer factors of 179 that divides 179 without a remainder.

1,179

Greatest Common Factor

We found the factors 21,71,85,179 . The biggest common factor number is the GCF number.
So the greatest common factor 21,71,85,179 is 1.

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

• GCF of 75, 32, 32, 925
• GCF of 95, 14, 19, 362
• GCF of 93, 32, 31, 174
• GCF of 97, 88, 82, 162
• GCF of 34, 78, 52, 139

1. What is the GCF of 21, 71, 85, 179?

Answer: GCF of 21, 71, 85, 179 is 1.

2. How to Find the GCF of 21, 71, 85, 179

Answer: Greatest Common Factor(GCF) of 21, 71, 85, 179 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 71, 85, 179) = 1.