Greatest Common Factor of 17, 21, 20, 32

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

• Greatest Common Factor of 17, 21, 20, 32 by common division method
• Greatest Common Factor of 17, 21, 20, 32 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 17

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

1,17

Factors of 21

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

1,3,7,21

Factors of 20

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

1,2,4,5,10,20

Factors of 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Greatest Common Factor

We found the factors 17,21,20,32 . The biggest common factor number is the GCF number.
So the greatest common factor 17,21,20,32 is 1.

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

• GCF of 27, 76, 63, 44
• GCF of 98, 40, 39, 93
• GCF of 22, 36, 68, 21
• GCF of 66, 73, 88, 43
• GCF of 33, 33, 62, 24

1. What is the GCF of 17, 21, 20, 32?

Answer: GCF of 17, 21, 20, 32 is 1.

2. How to Find the GCF of 17, 21, 20, 32

Answer: Greatest Common Factor(GCF) of 17, 21, 20, 32 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 21, 20, 32) = 1.