Greatest Common Factor of 18, 17, 69, 478

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

• Greatest Common Factor of 18, 17, 69, 478 by common division method
• Greatest Common Factor of 18, 17, 69, 478 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 17

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

1,17

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 478

List of positive integer factors of 478 that divides 478 without a remainder.

1,2,239,478

Greatest Common Factor

We found the factors 18,17,69,478 . The biggest common factor number is the GCF number.
So the greatest common factor 18,17,69,478 is 1.

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

• GCF of 73, 89, 11, 227
• GCF of 30, 93, 47, 314
• GCF of 30, 37, 18, 501
• GCF of 38, 17, 71, 806
• GCF of 39, 56, 96, 940

1. What is the GCF of 18, 17, 69, 478?

Answer: GCF of 18, 17, 69, 478 is 1.

2. How to Find the GCF of 18, 17, 69, 478

Answer: Greatest Common Factor(GCF) of 18, 17, 69, 478 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 17, 69, 478) = 1.