Greatest Common Factor of 34, 75, 78, 42

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

• Greatest Common Factor of 34, 75, 78, 42 by common division method
• Greatest Common Factor of 34, 75, 78, 42 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 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Greatest Common Factor

We found the factors 34,75,78,42 . The biggest common factor number is the GCF number.
So the greatest common factor 34,75,78,42 is 1.

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

• GCF of 82, 45, 23, 76
• GCF of 86, 19, 10, 82
• GCF of 21, 87, 98, 17
• GCF of 26, 99, 25, 71
• GCF of 76, 43, 71, 85

1. What is the GCF of 34, 75, 78, 42?

Answer: GCF of 34, 75, 78, 42 is 1.

2. How to Find the GCF of 34, 75, 78, 42

Answer: Greatest Common Factor(GCF) of 34, 75, 78, 42 = 1

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

Step 2: Then multiply all the prime factors GCF(34, 75, 78, 42) = 1.