Greatest Common Factor of 21, 80, 578

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

• Greatest Common Factor of 21, 80, 578 by common division method
• Greatest Common Factor of 21, 80, 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

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 21,80,578 . The biggest common factor number is the GCF number.
So the greatest common factor 21,80,578 is 1.

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

• GCF of 45, 33, 360
• GCF of 16, 50, 319
• GCF of 55, 81, 244
• GCF of 61, 22, 423
• GCF of 86, 80, 819

1. What is the GCF of 21, 80, 578?

Answer: GCF of 21, 80, 578 is 1.

2. How to Find the GCF of 21, 80, 578

Answer: Greatest Common Factor(GCF) of 21, 80, 578 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 80, 578) = 1.