Greatest Common Factor of 18, 71, 80, 90, 32

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

• Greatest Common Factor of 18, 71, 80, 90, 32 by common division method
• Greatest Common Factor of 18, 71, 80, 90, 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 71

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

1,71

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

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 18,71,80,90,32 . The biggest common factor number is the GCF number.
So the greatest common factor 18,71,80,90,32 is 1.

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

• GCF of 77, 92, 50, 39, 64
• GCF of 93, 24, 18, 45, 74
• GCF of 86, 40, 63, 67, 94
• GCF of 65, 76, 23, 80, 85
• GCF of 43, 76, 92, 27, 15

1. What is the GCF of 18, 71, 80, 90, 32?

Answer: GCF of 18, 71, 80, 90, 32 is 1.

2. How to Find the GCF of 18, 71, 80, 90, 32

Answer: Greatest Common Factor(GCF) of 18, 71, 80, 90, 32 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 71, 80, 90, 32) = 1.