Greatest Common Factor of 399, 309, 442

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

• Greatest Common Factor of 399, 309, 442 by common division method
• Greatest Common Factor of 399, 309, 442 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

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 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Factors of 442

List of positive integer factors of 442 that divides 442 without a remainder.

1,2,13,17,26,34,221,442

Greatest Common Factor

We found the factors 399,309,442 . The biggest common factor number is the GCF number.
So the greatest common factor 399,309,442 is 1.

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

• GCF of 831, 236, 134
• GCF of 455, 169, 735
• GCF of 479, 633, 732
• GCF of 590, 612, 775
• GCF of 549, 615, 461

1. What is the GCF of 399, 309, 442?

Answer: GCF of 399, 309, 442 is 1.

2. How to Find the GCF of 399, 309, 442

Answer: Greatest Common Factor(GCF) of 399, 309, 442 = 1

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

Step 2: Then multiply all the prime factors GCF(399, 309, 442) = 1.