Greatest Common Factor of 42, 21, 44, 915

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

• Greatest Common Factor of 42, 21, 44, 915 by common division method
• Greatest Common Factor of 42, 21, 44, 915 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 44

List of positive integer factors of 44 that divides 44 without a remainder.

1,2,4,11,22,44

Factors of 915

List of positive integer factors of 915 that divides 915 without a remainder.

1,3,5,15,61,183,305,915

Greatest Common Factor

We found the factors 42,21,44,915 . The biggest common factor number is the GCF number.
So the greatest common factor 42,21,44,915 is 1.

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

• GCF of 60, 31, 79, 977
• GCF of 20, 10, 53, 402
• GCF of 12, 61, 35, 843
• GCF of 88, 62, 49, 582
• GCF of 14, 51, 46, 518

1. What is the GCF of 42, 21, 44, 915?

Answer: GCF of 42, 21, 44, 915 is 1.

2. How to Find the GCF of 42, 21, 44, 915

Answer: Greatest Common Factor(GCF) of 42, 21, 44, 915 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 21, 44, 915) = 1.