Greatest Common Factor of 42, 22, 643

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

• Greatest Common Factor of 42, 22, 643 by common division method
• Greatest Common Factor of 42, 22, 643 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 22

List of positive integer factors of 22 that divides 22 without a remainder.

1,2,11,22

Factors of 643

List of positive integer factors of 643 that divides 643 without a remainder.

1,643

Greatest Common Factor

We found the factors 42,22,643 . The biggest common factor number is the GCF number.
So the greatest common factor 42,22,643 is 1.

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

• GCF of 63, 10, 687
• GCF of 37, 34, 907
• GCF of 35, 23, 318
• GCF of 17, 80, 314
• GCF of 57, 85, 830

1. What is the GCF of 42, 22, 643?

Answer: GCF of 42, 22, 643 is 1.

2. How to Find the GCF of 42, 22, 643

Answer: Greatest Common Factor(GCF) of 42, 22, 643 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 22, 643) = 1.