Greatest Common Factor of 81, 63, 798

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

• Greatest Common Factor of 81, 63, 798 by common division method
• Greatest Common Factor of 81, 63, 798 with matching the biggest common factor

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

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

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

Greatest Common Factor

We found the factors 81,63,798 . The biggest common factor number is the GCF number.
So the greatest common factor 81,63,798 is 3.

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

• GCF of 40, 69, 606
• GCF of 71, 65, 495
• GCF of 21, 37, 238
• GCF of 16, 47, 647
• GCF of 65, 61, 527

1. What is the GCF of 81, 63, 798?

Answer: GCF of 81, 63, 798 is 3.

2. How to Find the GCF of 81, 63, 798

Answer: Greatest Common Factor(GCF) of 81, 63, 798 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 63, 798) = 3.