# Greatest Common Factor of 15, 35, 42, 68

GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 15, 35, 42, 68 i.e. 1 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 15, 35, 42, 68 is 1.

GCF(15, 35, 42, 68) = 1

## GCF of 15, 35, 42, 68

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

GCF of:

### Greatest Common Factor (GCF) of 15,35,42,68 By Common Division

∴ GCF of numbers is 1 because of no common factors present between them.

### Greatest Common Factor (GCF) By Matching Biggest Common Factor Method

Factors of 15

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

1,3,5,15

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Greatest Common Factor

We found the factors 15,35,42,68 . The biggest common factor number is the GCF number.
So the greatest common factor 15,35,42,68 is 1.

### GCF of two or more Numbers Calculation Examples

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

### Frequently Asked Questions on GCF of 15, 35, 42, 68

1. What is the GCF of 15, 35, 42, 68?

Answer: GCF of 15, 35, 42, 68 is 1.

2. How to Find the GCF of 15, 35, 42, 68

Answer: Greatest Common Factor(GCF) of 15, 35, 42, 68 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 35, 42, 68) = 1.