Greatest Common Factor of 15, 64, 72, 15

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

• Greatest Common Factor of 15, 64, 72, 15 by common division method
• Greatest Common Factor of 15, 64, 72, 15 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 15,64,72,15 . The biggest common factor number is the GCF number.
So the greatest common factor 15,64,72,15 is 1.

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

• GCF of 42, 72, 89, 67
• GCF of 92, 63, 29, 52
• GCF of 17, 57, 26, 29
• GCF of 22, 18, 42, 12
• GCF of 67, 53, 62, 49

1. What is the GCF of 15, 64, 72, 15?

Answer: GCF of 15, 64, 72, 15 is 1.

2. How to Find the GCF of 15, 64, 72, 15

Answer: Greatest Common Factor(GCF) of 15, 64, 72, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 64, 72, 15) = 1.