Greatest Common Factor of 36, 81, 85, 721

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

• Greatest Common Factor of 36, 81, 85, 721 by common division method
• Greatest Common Factor of 36, 81, 85, 721 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 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 81

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

1,3,9,27,81

Factors of 85

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

1,5,17,85

Factors of 721

List of positive integer factors of 721 that divides 721 without a remainder.

1,7,103,721

Greatest Common Factor

We found the factors 36,81,85,721 . The biggest common factor number is the GCF number.
So the greatest common factor 36,81,85,721 is 1.

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

• GCF of 97, 65, 87, 179
• GCF of 22, 15, 11, 201
• GCF of 95, 46, 80, 888
• GCF of 84, 26, 60, 742
• GCF of 51, 85, 86, 320

1. What is the GCF of 36, 81, 85, 721?

Answer: GCF of 36, 81, 85, 721 is 1.

2. How to Find the GCF of 36, 81, 85, 721

Answer: Greatest Common Factor(GCF) of 36, 81, 85, 721 = 1

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

Step 2: Then multiply all the prime factors GCF(36, 81, 85, 721) = 1.