Greatest Common Factor of 81, 65, 38, 671

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

• Greatest Common Factor of 81, 65, 38, 671 by common division method
• Greatest Common Factor of 81, 65, 38, 671 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 671

List of positive integer factors of 671 that divides 671 without a remainder.

1,11,61,671

Greatest Common Factor

We found the factors 81,65,38,671 . The biggest common factor number is the GCF number.
So the greatest common factor 81,65,38,671 is 1.

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

• GCF of 82, 83, 10, 350
• GCF of 61, 62, 91, 189
• GCF of 54, 16, 83, 394
• GCF of 41, 18, 63, 397
• GCF of 75, 45, 65, 729

1. What is the GCF of 81, 65, 38, 671?

Answer: GCF of 81, 65, 38, 671 is 1.

2. How to Find the GCF of 81, 65, 38, 671

Answer: Greatest Common Factor(GCF) of 81, 65, 38, 671 = 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, 671) = 1.