Greatest Common Factor of 21, 90, 89, 339

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

• Greatest Common Factor of 21, 90, 89, 339 by common division method
• Greatest Common Factor of 21, 90, 89, 339 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 339

List of positive integer factors of 339 that divides 339 without a remainder.

1,3,113,339

Greatest Common Factor

We found the factors 21,90,89,339 . The biggest common factor number is the GCF number.
So the greatest common factor 21,90,89,339 is 1.

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

• GCF of 45, 49, 42, 939
• GCF of 77, 31, 95, 546
• GCF of 86, 55, 31, 616
• GCF of 84, 14, 24, 401
• GCF of 13, 49, 48, 142

1. What is the GCF of 21, 90, 89, 339?

Answer: GCF of 21, 90, 89, 339 is 1.

2. How to Find the GCF of 21, 90, 89, 339

Answer: Greatest Common Factor(GCF) of 21, 90, 89, 339 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 90, 89, 339) = 1.