Greatest Common Factor of 81, 65, 38, 891

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

• Greatest Common Factor of 81, 65, 38, 891 by common division method
• Greatest Common Factor of 81, 65, 38, 891 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 65

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

1,5,13,65

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 891

List of positive integer factors of 891 that divides 891 without a remainder.

1,3,9,11,27,33,81,99,297,891

Greatest Common Factor

We found the factors 81,65,38,891 . The biggest common factor number is the GCF number.
So the greatest common factor 81,65,38,891 is 1.

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

• GCF of 74, 35, 14, 505
• GCF of 82, 65, 59, 662
• GCF of 87, 56, 45, 145
• GCF of 66, 31, 82, 574
• GCF of 22, 54, 37, 430

1. What is the GCF of 81, 65, 38, 891?

Answer: GCF of 81, 65, 38, 891 is 1.

2. How to Find the GCF of 81, 65, 38, 891

Answer: Greatest Common Factor(GCF) of 81, 65, 38, 891 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 65, 38, 891) = 1.