Greatest Common Factor of 42, 645, 557

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

• Greatest Common Factor of 42, 645, 557 by common division method
• Greatest Common Factor of 42, 645, 557 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 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 557

List of positive integer factors of 557 that divides 557 without a remainder.

1,557

Greatest Common Factor

We found the factors 42,645,557 . The biggest common factor number is the GCF number.
So the greatest common factor 42,645,557 is 1.

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

• GCF of 90, 210, 355
• GCF of 82, 548, 142
• GCF of 12, 180, 400
• GCF of 91, 726, 494
• GCF of 73, 615, 413

1. What is the GCF of 42, 645, 557?

Answer: GCF of 42, 645, 557 is 1.

2. How to Find the GCF of 42, 645, 557

Answer: Greatest Common Factor(GCF) of 42, 645, 557 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 645, 557) = 1.