Greatest Common Factor of 621, 639, 987

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

• Greatest Common Factor of 621, 639, 987 by common division method
• Greatest Common Factor of 621, 639, 987 with matching the biggest common factor

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

Factors of 621

List of positive integer factors of 621 that divides 621 without a remainder.

1,3,9,23,27,69,207,621

Factors of 639

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

1,3,9,71,213,639

Factors of 987

List of positive integer factors of 987 that divides 987 without a remainder.

1,3,7,21,47,141,329,987

Greatest Common Factor

We found the factors 621,639,987 . The biggest common factor number is the GCF number.
So the greatest common factor 621,639,987 is 3.

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

• GCF of 387, 555, 482
• GCF of 523, 765, 103
• GCF of 554, 572, 727
• GCF of 527, 210, 332
• GCF of 805, 351, 970

1. What is the GCF of 621, 639, 987?

Answer: GCF of 621, 639, 987 is 3.

2. How to Find the GCF of 621, 639, 987

Answer: Greatest Common Factor(GCF) of 621, 639, 987 = 3

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

Step 2: Then multiply all the prime factors GCF(621, 639, 987) = 3.