Greatest Common Factor of 21, 798, 555

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

• Greatest Common Factor of 21, 798, 555 by common division method
• Greatest Common Factor of 21, 798, 555 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 21

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

1,3,7,21

Factors of 798

List of positive integer factors of 798 that divides 798 without a remainder.

1,2,3,6,7,14,19,21,38,42,57,114,133,266,399,798

Factors of 555

List of positive integer factors of 555 that divides 555 without a remainder.

1,3,5,15,37,111,185,555

Greatest Common Factor

We found the factors 21,798,555 . The biggest common factor number is the GCF number.
So the greatest common factor 21,798,555 is 3.

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

• GCF of 77, 503, 429
• GCF of 79, 810, 138
• GCF of 15, 726, 100
• GCF of 98, 199, 685
• GCF of 39, 831, 276

1. What is the GCF of 21, 798, 555?

Answer: GCF of 21, 798, 555 is 3.

2. How to Find the GCF of 21, 798, 555

Answer: Greatest Common Factor(GCF) of 21, 798, 555 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 798, 555) = 3.