Greatest Common Factor of 17, 42, 78, 164

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

• Greatest Common Factor of 17, 42, 78, 164 by common division method
• Greatest Common Factor of 17, 42, 78, 164 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

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 78

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

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

Factors of 164

List of positive integer factors of 164 that divides 164 without a remainder.

1,2,4,41,82,164

Greatest Common Factor

We found the factors 17,42,78,164 . The biggest common factor number is the GCF number.
So the greatest common factor 17,42,78,164 is 1.

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

• GCF of 94, 91, 66, 111
• GCF of 39, 52, 94, 442
• GCF of 18, 57, 83, 375
• GCF of 17, 85, 39, 854
• GCF of 24, 41, 19, 662

1. What is the GCF of 17, 42, 78, 164?

Answer: GCF of 17, 42, 78, 164 is 1.

2. How to Find the GCF of 17, 42, 78, 164

Answer: Greatest Common Factor(GCF) of 17, 42, 78, 164 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 42, 78, 164) = 1.