Greatest Common Factor of 159, 422, 21

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

• Greatest Common Factor of 159, 422, 21 by common division method
• Greatest Common Factor of 159, 422, 21 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 159

List of positive integer factors of 159 that divides 159 without a remainder.

1,3,53,159

Factors of 422

List of positive integer factors of 422 that divides 422 without a remainder.

1,2,211,422

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 159,422,21 . The biggest common factor number is the GCF number.
So the greatest common factor 159,422,21 is 1.

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

• GCF of 313, 580, 36
• GCF of 701, 965, 75
• GCF of 328, 635, 47
• GCF of 503, 154, 86
• GCF of 574, 576, 95

1. What is the GCF of 159, 422, 21?

Answer: GCF of 159, 422, 21 is 1.

2. How to Find the GCF of 159, 422, 21

Answer: Greatest Common Factor(GCF) of 159, 422, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(159, 422, 21) = 1.