Greatest Common Factor of 549, 21, 128

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

• Greatest Common Factor of 549, 21, 128 by common division method
• Greatest Common Factor of 549, 21, 128 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 549

List of positive integer factors of 549 that divides 549 without a remainder.

1,3,9,61,183,549

Factors of 21

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

1,3,7,21

Factors of 128

List of positive integer factors of 128 that divides 128 without a remainder.

1,2,4,8,16,32,64,128

Greatest Common Factor

We found the factors 549,21,128 . The biggest common factor number is the GCF number.
So the greatest common factor 549,21,128 is 1.

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

• GCF of 130, 39, 978
• GCF of 501, 34, 124
• GCF of 173, 29, 372
• GCF of 418, 24, 399
• GCF of 855, 88, 423

1. What is the GCF of 549, 21, 128?

Answer: GCF of 549, 21, 128 is 1.

2. How to Find the GCF of 549, 21, 128

Answer: Greatest Common Factor(GCF) of 549, 21, 128 = 1

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

Step 2: Then multiply all the prime factors GCF(549, 21, 128) = 1.