Greatest Common Factor of 18, 421, 580

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

• Greatest Common Factor of 18, 421, 580 by common division method
• Greatest Common Factor of 18, 421, 580 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 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Factors of 580

List of positive integer factors of 580 that divides 580 without a remainder.

1,2,4,5,10,20,29,58,116,145,290,580

Greatest Common Factor

We found the factors 18,421,580 . The biggest common factor number is the GCF number.
So the greatest common factor 18,421,580 is 1.

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

• GCF of 34, 579, 249
• GCF of 33, 279, 148
• GCF of 62, 975, 474
• GCF of 60, 545, 703
• GCF of 51, 771, 857

1. What is the GCF of 18, 421, 580?

Answer: GCF of 18, 421, 580 is 1.

2. How to Find the GCF of 18, 421, 580

Answer: Greatest Common Factor(GCF) of 18, 421, 580 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 421, 580) = 1.