Greatest Common Factor of 81, 61, 321

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

• Greatest Common Factor of 81, 61, 321 by common division method
• Greatest Common Factor of 81, 61, 321 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 61

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

1,61

Factors of 321

List of positive integer factors of 321 that divides 321 without a remainder.

1,3,107,321

Greatest Common Factor

We found the factors 81,61,321 . The biggest common factor number is the GCF number.
So the greatest common factor 81,61,321 is 1.

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

• GCF of 31, 36, 642
• GCF of 17, 21, 235
• GCF of 73, 22, 898
• GCF of 87, 77, 172
• GCF of 29, 74, 426

1. What is the GCF of 81, 61, 321?

Answer: GCF of 81, 61, 321 is 1.

2. How to Find the GCF of 81, 61, 321

Answer: Greatest Common Factor(GCF) of 81, 61, 321 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 61, 321) = 1.