Greatest Common Factor of 399, 648, 642

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

• Greatest Common Factor of 399, 648, 642 by common division method
• Greatest Common Factor of 399, 648, 642 with matching the biggest common factor

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

Factors of 399

List of positive integer factors of 399 that divides 399 without a remainder.

1,3,7,19,21,57,133,399

Factors of 648

List of positive integer factors of 648 that divides 648 without a remainder.

1,2,3,4,6,8,9,12,18,24,27,36,54,72,81,108,162,216,324,648

Factors of 642

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

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

Greatest Common Factor

We found the factors 399,648,642 . The biggest common factor number is the GCF number.
So the greatest common factor 399,648,642 is 3.

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

• GCF of 417, 876, 140
• GCF of 433, 862, 556
• GCF of 142, 709, 873
• GCF of 187, 724, 577
• GCF of 480, 456, 779

1. What is the GCF of 399, 648, 642?

Answer: GCF of 399, 648, 642 is 3.

2. How to Find the GCF of 399, 648, 642

Answer: Greatest Common Factor(GCF) of 399, 648, 642 = 3

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

Step 2: Then multiply all the prime factors GCF(399, 648, 642) = 3.