Greatest Common Factor of 42, 15, 868

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

• Greatest Common Factor of 42, 15, 868 by common division method
• Greatest Common Factor of 42, 15, 868 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 868

List of positive integer factors of 868 that divides 868 without a remainder.

1,2,4,7,14,28,31,62,124,217,434,868

Greatest Common Factor

We found the factors 42,15,868 . The biggest common factor number is the GCF number.
So the greatest common factor 42,15,868 is 1.

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

• GCF of 42, 16, 661
• GCF of 20, 21, 941
• GCF of 57, 91, 257
• GCF of 54, 41, 629
• GCF of 63, 97, 809

1. What is the GCF of 42, 15, 868?

Answer: GCF of 42, 15, 868 is 1.

2. How to Find the GCF of 42, 15, 868

Answer: Greatest Common Factor(GCF) of 42, 15, 868 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 15, 868) = 1.