Greatest Common Factor of 70, 75, 42, 79

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

• Greatest Common Factor of 70, 75, 42, 79 by common division method
• Greatest Common Factor of 70, 75, 42, 79 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 75

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

1,3,5,15,25,75

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 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Greatest Common Factor

We found the factors 70,75,42,79 . The biggest common factor number is the GCF number.
So the greatest common factor 70,75,42,79 is 1.

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

• GCF of 18, 16, 71, 36
• GCF of 84, 77, 66, 74
• GCF of 87, 65, 72, 13
• GCF of 25, 28, 25, 99
• GCF of 33, 80, 24, 92

1. What is the GCF of 70, 75, 42, 79?

Answer: GCF of 70, 75, 42, 79 is 1.

2. How to Find the GCF of 70, 75, 42, 79

Answer: Greatest Common Factor(GCF) of 70, 75, 42, 79 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 75, 42, 79) = 1.