Greatest Common Factor of 798, 639, 87

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

• Greatest Common Factor of 798, 639, 87 by common division method
• Greatest Common Factor of 798, 639, 87 with matching the biggest common factor

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

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 639

List of positive integer factors of 639 that divides 639 without a remainder.

1,3,9,71,213,639

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Greatest Common Factor

We found the factors 798,639,87 . The biggest common factor number is the GCF number.
So the greatest common factor 798,639,87 is 3.

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

• GCF of 721, 433, 65
• GCF of 393, 179, 22
• GCF of 420, 161, 20
• GCF of 470, 101, 23
• GCF of 867, 239, 50

1. What is the GCF of 798, 639, 87?

Answer: GCF of 798, 639, 87 is 3.

2. How to Find the GCF of 798, 639, 87

Answer: Greatest Common Factor(GCF) of 798, 639, 87 = 3

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

Step 2: Then multiply all the prime factors GCF(798, 639, 87) = 3.