Greatest Common Factor of 642, 662, 390

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

• Greatest Common Factor of 642, 662, 390 by common division method
• Greatest Common Factor of 642, 662, 390 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Factors of 662

List of positive integer factors of 662 that divides 662 without a remainder.

1,2,331,662

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Greatest Common Factor

We found the factors 642,662,390 . The biggest common factor number is the GCF number.
So the greatest common factor 642,662,390 is 2.

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

• GCF of 817, 669, 974
• GCF of 881, 360, 469
• GCF of 239, 403, 793
• GCF of 472, 324, 733
• GCF of 620, 385, 652

1. What is the GCF of 642, 662, 390?

Answer: GCF of 642, 662, 390 is 2.

2. How to Find the GCF of 642, 662, 390

Answer: Greatest Common Factor(GCF) of 642, 662, 390 = 2

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

Step 2: Then multiply all the prime factors GCF(642, 662, 390) = 2.