Greatest Common Factor of 81, 72, 45, 61, 37

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

• Greatest Common Factor of 81, 72, 45, 61, 37 by common division method
• Greatest Common Factor of 81, 72, 45, 61, 37 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 81

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

1,3,9,27,81

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 45

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

1,3,5,9,15,45

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 37

List of positive integer factors of 37 that divides 37 without a remainder.

1,37

Greatest Common Factor

We found the factors 81,72,45,61,37 . The biggest common factor number is the GCF number.
So the greatest common factor 81,72,45,61,37 is 1.

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

• GCF of 60, 62, 26, 52, 21
• GCF of 92, 92, 93, 70, 91
• GCF of 30, 40, 39, 38, 32
• GCF of 63, 70, 63, 41, 76
• GCF of 69, 53, 17, 49, 88

1. What is the GCF of 81, 72, 45, 61, 37?

Answer: GCF of 81, 72, 45, 61, 37 is 1.

2. How to Find the GCF of 81, 72, 45, 61, 37

Answer: Greatest Common Factor(GCF) of 81, 72, 45, 61, 37 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 72, 45, 61, 37) = 1.