Greatest Common Factor of 17, 86, 42, 189

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

• Greatest Common Factor of 17, 86, 42, 189 by common division method
• Greatest Common Factor of 17, 86, 42, 189 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 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

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 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Greatest Common Factor

We found the factors 17,86,42,189 . The biggest common factor number is the GCF number.
So the greatest common factor 17,86,42,189 is 1.

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

• GCF of 58, 21, 61, 497
• GCF of 42, 67, 86, 434
• GCF of 93, 18, 15, 359
• GCF of 41, 58, 68, 366
• GCF of 59, 46, 26, 301

1. What is the GCF of 17, 86, 42, 189?

Answer: GCF of 17, 86, 42, 189 is 1.

2. How to Find the GCF of 17, 86, 42, 189

Answer: Greatest Common Factor(GCF) of 17, 86, 42, 189 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 86, 42, 189) = 1.