Greatest Common Factor of 42, 81, 380

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

• Greatest Common Factor of 42, 81, 380 by common division method
• Greatest Common Factor of 42, 81, 380 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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

Greatest Common Factor

We found the factors 42,81,380 . The biggest common factor number is the GCF number.
So the greatest common factor 42,81,380 is 1.

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

• GCF of 92, 98, 542
• GCF of 98, 37, 267
• GCF of 57, 95, 357
• GCF of 86, 90, 485
• GCF of 53, 51, 703

1. What is the GCF of 42, 81, 380?

Answer: GCF of 42, 81, 380 is 1.

2. How to Find the GCF of 42, 81, 380

Answer: Greatest Common Factor(GCF) of 42, 81, 380 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 81, 380) = 1.