Greatest Common Factor of 81, 18, 671

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

• Greatest Common Factor of 81, 18, 671 by common division method
• Greatest Common Factor of 81, 18, 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

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 81,18,671 . The biggest common factor number is the GCF number.
So the greatest common factor 81,18,671 is 1.

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

• GCF of 63, 93, 805
• GCF of 81, 17, 690
• GCF of 79, 23, 588
• GCF of 95, 50, 556
• GCF of 88, 65, 171

1. What is the GCF of 81, 18, 671?

Answer: GCF of 81, 18, 671 is 1.

2. How to Find the GCF of 81, 18, 671

Answer: Greatest Common Factor(GCF) of 81, 18, 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, 18, 671) = 1.