Greatest Common Factor of 639, 840, 987

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

• Greatest Common Factor of 639, 840, 987 by common division method
• Greatest Common Factor of 639, 840, 987 with matching the biggest common factor

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

Factors of 639

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

1,3,9,71,213,639

Factors of 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

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 639,840,987 . The biggest common factor number is the GCF number.
So the greatest common factor 639,840,987 is 3.

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

• GCF of 188, 494, 263
• GCF of 380, 382, 273
• GCF of 543, 441, 937
• GCF of 685, 220, 557
• GCF of 890, 361, 824

1. What is the GCF of 639, 840, 987?

Answer: GCF of 639, 840, 987 is 3.

2. How to Find the GCF of 639, 840, 987

Answer: Greatest Common Factor(GCF) of 639, 840, 987 = 3

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

Step 2: Then multiply all the prime factors GCF(639, 840, 987) = 3.