Greatest Common Factor of 18, 45, 80, 417

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

• Greatest Common Factor of 18, 45, 80, 417 by common division method
• Greatest Common Factor of 18, 45, 80, 417 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 417

List of positive integer factors of 417 that divides 417 without a remainder.

1,3,139,417

Greatest Common Factor

We found the factors 18,45,80,417 . The biggest common factor number is the GCF number.
So the greatest common factor 18,45,80,417 is 1.

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

• GCF of 82, 39, 78, 732
• GCF of 27, 24, 40, 394
• GCF of 85, 48, 95, 824
• GCF of 38, 11, 62, 150
• GCF of 92, 93, 93, 814

1. What is the GCF of 18, 45, 80, 417?

Answer: GCF of 18, 45, 80, 417 is 1.

2. How to Find the GCF of 18, 45, 80, 417

Answer: Greatest Common Factor(GCF) of 18, 45, 80, 417 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 45, 80, 417) = 1.