Greatest Common Factor of 28, 18, 71, 320

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

• Greatest Common Factor of 28, 18, 71, 320 by common division method
• Greatest Common Factor of 28, 18, 71, 320 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 320

List of positive integer factors of 320 that divides 320 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,160,320

Greatest Common Factor

We found the factors 28,18,71,320 . The biggest common factor number is the GCF number.
So the greatest common factor 28,18,71,320 is 1.

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

• GCF of 39, 46, 22, 124
• GCF of 74, 84, 95, 876
• GCF of 75, 71, 79, 910
• GCF of 40, 44, 18, 386
• GCF of 46, 46, 19, 537

1. What is the GCF of 28, 18, 71, 320?

Answer: GCF of 28, 18, 71, 320 is 1.

2. How to Find the GCF of 28, 18, 71, 320

Answer: Greatest Common Factor(GCF) of 28, 18, 71, 320 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 18, 71, 320) = 1.