Greatest Common Factor of 13, 21, 578

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

• Greatest Common Factor of 13, 21, 578 by common division method
• Greatest Common Factor of 13, 21, 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 21

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

1,3,7,21

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 13,21,578 . The biggest common factor number is the GCF number.
So the greatest common factor 13,21,578 is 1.

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

• GCF of 60, 91, 484
• GCF of 97, 17, 151
• GCF of 15, 86, 533
• GCF of 34, 42, 403
• GCF of 17, 82, 896

1. What is the GCF of 13, 21, 578?

Answer: GCF of 13, 21, 578 is 1.

2. How to Find the GCF of 13, 21, 578

Answer: Greatest Common Factor(GCF) of 13, 21, 578 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 21, 578) = 1.