Greatest Common Factor of 18, 89, 60, 91, 75

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

• Greatest Common Factor of 18, 89, 60, 91, 75 by common division method
• Greatest Common Factor of 18, 89, 60, 91, 75 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 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Factors of 91

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

1,7,13,91

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Greatest Common Factor

We found the factors 18,89,60,91,75 . The biggest common factor number is the GCF number.
So the greatest common factor 18,89,60,91,75 is 1.

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

• GCF of 15, 90, 34, 47, 42
• GCF of 15, 54, 97, 79, 23
• GCF of 27, 63, 95, 29, 66
• GCF of 61, 89, 12, 27, 93
• GCF of 15, 39, 99, 96, 18

1. What is the GCF of 18, 89, 60, 91, 75?

Answer: GCF of 18, 89, 60, 91, 75 is 1.

2. How to Find the GCF of 18, 89, 60, 91, 75

Answer: Greatest Common Factor(GCF) of 18, 89, 60, 91, 75 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 89, 60, 91, 75) = 1.