Greatest Common Factor of 129, 380, 42

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

• Greatest Common Factor of 129, 380, 42 by common division method
• Greatest Common Factor of 129, 380, 42 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 129

List of positive integer factors of 129 that divides 129 without a remainder.

1,3,43,129

Factors of 380

List of positive integer factors of 380 that divides 380 without a remainder.

1,2,4,5,10,19,20,38,76,95,190,380

Factors of 42

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

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

Greatest Common Factor

We found the factors 129,380,42 . The biggest common factor number is the GCF number.
So the greatest common factor 129,380,42 is 1.

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

• GCF of 964, 436, 22
• GCF of 140, 688, 17
• GCF of 618, 879, 67
• GCF of 688, 668, 91
• GCF of 477, 194, 84

1. What is the GCF of 129, 380, 42?

Answer: GCF of 129, 380, 42 is 1.

2. How to Find the GCF of 129, 380, 42

Answer: Greatest Common Factor(GCF) of 129, 380, 42 = 1

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

Step 2: Then multiply all the prime factors GCF(129, 380, 42) = 1.