Greatest Common Factor of 18, 12, 75, 7, 27

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

• Greatest Common Factor of 18, 12, 75, 7, 27 by common division method
• Greatest Common Factor of 18, 12, 75, 7, 27 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 75

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

1,3,5,15,25,75

Factors of 7

List of positive integer factors of 7 that divides 7 without a remainder.

1,7

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Greatest Common Factor

We found the factors 18,12,75,7,27 . The biggest common factor number is the GCF number.
So the greatest common factor 18,12,75,7,27 is 1.

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

• GCF of 77, 30, 76, 4, 12
• GCF of 75, 60, 73, 6, 65
• GCF of 29, 81, 41, 1, 23
• GCF of 24, 46, 83, 5, 83
• GCF of 98, 66, 92, 6, 38

1. What is the GCF of 18, 12, 75, 7, 27?

Answer: GCF of 18, 12, 75, 7, 27 is 1.

2. How to Find the GCF of 18, 12, 75, 7, 27

Answer: Greatest Common Factor(GCF) of 18, 12, 75, 7, 27 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 12, 75, 7, 27) = 1.