Greatest Common Factor of 42, 455, 578

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

• Greatest Common Factor of 42, 455, 578 by common division method
• Greatest Common Factor of 42, 455, 578 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 455

List of positive integer factors of 455 that divides 455 without a remainder.

1,5,7,13,35,65,91,455

Factors of 578

List of positive integer factors of 578 that divides 578 without a remainder.

1,2,17,34,289,578

Greatest Common Factor

We found the factors 42,455,578 . The biggest common factor number is the GCF number.
So the greatest common factor 42,455,578 is 1.

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

• GCF of 34, 712, 439
• GCF of 69, 732, 278
• GCF of 77, 914, 420
• GCF of 12, 741, 883
• GCF of 87, 187, 732

1. What is the GCF of 42, 455, 578?

Answer: GCF of 42, 455, 578 is 1.

2. How to Find the GCF of 42, 455, 578

Answer: Greatest Common Factor(GCF) of 42, 455, 578 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 455, 578) = 1.