Greatest Common Factor of 72, 88, 85, 45

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

• Greatest Common Factor of 72, 88, 85, 45 by common division method
• Greatest Common Factor of 72, 88, 85, 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 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

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 72,88,85,45 . The biggest common factor number is the GCF number.
So the greatest common factor 72,88,85,45 is 1.

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

• GCF of 62, 52, 31, 60
• GCF of 83, 25, 23, 11
• GCF of 62, 12, 19, 44
• GCF of 92, 93, 83, 80
• GCF of 71, 33, 99, 45

1. What is the GCF of 72, 88, 85, 45?

Answer: GCF of 72, 88, 85, 45 is 1.

2. How to Find the GCF of 72, 88, 85, 45

Answer: Greatest Common Factor(GCF) of 72, 88, 85, 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, 88, 85, 45) = 1.