Greatest Common Factor of 20, 17, 91, 331

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

• Greatest Common Factor of 20, 17, 91, 331 by common division method
• Greatest Common Factor of 20, 17, 91, 331 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 331

List of positive integer factors of 331 that divides 331 without a remainder.

1,331

Greatest Common Factor

We found the factors 20,17,91,331 . The biggest common factor number is the GCF number.
So the greatest common factor 20,17,91,331 is 1.

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

• GCF of 72, 55, 20, 430
• GCF of 74, 45, 39, 789
• GCF of 56, 11, 86, 100
• GCF of 15, 71, 43, 899
• GCF of 10, 83, 30, 284

1. What is the GCF of 20, 17, 91, 331?

Answer: GCF of 20, 17, 91, 331 is 1.

2. How to Find the GCF of 20, 17, 91, 331

Answer: Greatest Common Factor(GCF) of 20, 17, 91, 331 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 17, 91, 331) = 1.