Greatest Common Factor of 81, 20, 578

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

• Greatest Common Factor of 81, 20, 578 by common division method
• Greatest Common Factor of 81, 20, 578 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 578

List of positive integer factors of 578 that divides 578 without a remainder.

1,2,17,34,289,578

Greatest Common Factor

We found the factors 81,20,578 . The biggest common factor number is the GCF number.
So the greatest common factor 81,20,578 is 1.

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

• GCF of 56, 93, 822
• GCF of 51, 42, 895
• GCF of 83, 26, 753
• GCF of 26, 96, 578
• GCF of 42, 54, 678

1. What is the GCF of 81, 20, 578?

Answer: GCF of 81, 20, 578 is 1.

2. How to Find the GCF of 81, 20, 578

Answer: Greatest Common Factor(GCF) of 81, 20, 578 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 20, 578) = 1.