Greatest Common Factor of 42, 13, 393

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

• Greatest Common Factor of 42, 13, 393 by common division method
• Greatest Common Factor of 42, 13, 393 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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 393

List of positive integer factors of 393 that divides 393 without a remainder.

1,3,131,393

Greatest Common Factor

We found the factors 42,13,393 . The biggest common factor number is the GCF number.
So the greatest common factor 42,13,393 is 1.

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

• GCF of 34, 68, 229
• GCF of 43, 41, 658
• GCF of 53, 55, 399
• GCF of 89, 88, 858
• GCF of 44, 49, 598

1. What is the GCF of 42, 13, 393?

Answer: GCF of 42, 13, 393 is 1.

2. How to Find the GCF of 42, 13, 393

Answer: Greatest Common Factor(GCF) of 42, 13, 393 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 13, 393) = 1.