Greatest Common Factor of 44, 65, 40, 81, 15

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

• Greatest Common Factor of 44, 65, 40, 81, 15 by common division method
• Greatest Common Factor of 44, 65, 40, 81, 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 44

List of positive integer factors of 44 that divides 44 without a remainder.

1,2,4,11,22,44

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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 44,65,40,81,15 . The biggest common factor number is the GCF number.
So the greatest common factor 44,65,40,81,15 is 1.

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

• GCF of 96, 90, 38, 79, 35
• GCF of 24, 28, 21, 87, 78
• GCF of 72, 15, 88, 40, 64
• GCF of 33, 76, 35, 19, 23
• GCF of 57, 72, 88, 76, 23

1. What is the GCF of 44, 65, 40, 81, 15?

Answer: GCF of 44, 65, 40, 81, 15 is 1.

2. How to Find the GCF of 44, 65, 40, 81, 15

Answer: Greatest Common Factor(GCF) of 44, 65, 40, 81, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(44, 65, 40, 81, 15) = 1.