Greatest Common Factor of 42, 45, 20, 359

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

• Greatest Common Factor of 42, 45, 20, 359 by common division method
• Greatest Common Factor of 42, 45, 20, 359 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 359

List of positive integer factors of 359 that divides 359 without a remainder.

1,359

Greatest Common Factor

We found the factors 42,45,20,359 . The biggest common factor number is the GCF number.
So the greatest common factor 42,45,20,359 is 1.

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

• GCF of 51, 81, 87, 700
• GCF of 76, 83, 99, 946
• GCF of 24, 70, 63, 455
• GCF of 12, 92, 33, 600
• GCF of 12, 97, 81, 486

1. What is the GCF of 42, 45, 20, 359?

Answer: GCF of 42, 45, 20, 359 is 1.

2. How to Find the GCF of 42, 45, 20, 359

Answer: Greatest Common Factor(GCF) of 42, 45, 20, 359 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 45, 20, 359) = 1.