Greatest Common Factor of 42, 45, 18, 811

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

• Greatest Common Factor of 42, 45, 18, 811 by common division method
• Greatest Common Factor of 42, 45, 18, 811 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 811

List of positive integer factors of 811 that divides 811 without a remainder.

1,811

Greatest Common Factor

We found the factors 42,45,18,811 . The biggest common factor number is the GCF number.
So the greatest common factor 42,45,18,811 is 1.

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

• GCF of 61, 45, 26, 556
• GCF of 75, 33, 15, 725
• GCF of 87, 19, 10, 470
• GCF of 64, 94, 46, 923
• GCF of 57, 92, 17, 120

1. What is the GCF of 42, 45, 18, 811?

Answer: GCF of 42, 45, 18, 811 is 1.

2. How to Find the GCF of 42, 45, 18, 811

Answer: Greatest Common Factor(GCF) of 42, 45, 18, 811 = 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, 18, 811) = 1.