Greatest Common Factor of 72, 5, 18, 45

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

• Greatest Common Factor of 72, 5, 18, 45 by common division method
• Greatest Common Factor of 72, 5, 18, 45 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 5

List of positive integer factors of 5 that divides 5 without a remainder.

1,5

Factors of 18

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

1,2,3,6,9,18

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Greatest Common Factor

We found the factors 72,5,18,45 . The biggest common factor number is the GCF number.
So the greatest common factor 72,5,18,45 is 1.

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

• GCF of 98, 2, 88, 75
• GCF of 19, 2, 38, 69
• GCF of 80, 9, 50, 73
• GCF of 92, 1, 83, 39
• GCF of 38, 5, 14, 95

1. What is the GCF of 72, 5, 18, 45?

Answer: GCF of 72, 5, 18, 45 is 1.

2. How to Find the GCF of 72, 5, 18, 45

Answer: Greatest Common Factor(GCF) of 72, 5, 18, 45 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 5, 18, 45) = 1.