Greatest Common Factor of 18, 65, 87, 489

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

• Greatest Common Factor of 18, 65, 87, 489 by common division method
• Greatest Common Factor of 18, 65, 87, 489 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 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 489

List of positive integer factors of 489 that divides 489 without a remainder.

1,3,163,489

Greatest Common Factor

We found the factors 18,65,87,489 . The biggest common factor number is the GCF number.
So the greatest common factor 18,65,87,489 is 1.

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

• GCF of 17, 29, 19, 373
• GCF of 58, 25, 12, 680
• GCF of 81, 64, 45, 755
• GCF of 77, 57, 48, 574
• GCF of 15, 19, 48, 189

1. What is the GCF of 18, 65, 87, 489?

Answer: GCF of 18, 65, 87, 489 is 1.

2. How to Find the GCF of 18, 65, 87, 489

Answer: Greatest Common Factor(GCF) of 18, 65, 87, 489 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 65, 87, 489) = 1.