Greatest Common Factor of 84, 18, 421

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

• Greatest Common Factor of 84, 18, 421 by common division method
• Greatest Common Factor of 84, 18, 421 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 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

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

Greatest Common Factor

We found the factors 84,18,421 . The biggest common factor number is the GCF number.
So the greatest common factor 84,18,421 is 1.

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

• GCF of 99, 84, 567
• GCF of 27, 59, 378
• GCF of 12, 64, 692
• GCF of 60, 82, 783
• GCF of 82, 98, 121

1. What is the GCF of 84, 18, 421?

Answer: GCF of 84, 18, 421 is 1.

2. How to Find the GCF of 84, 18, 421

Answer: Greatest Common Factor(GCF) of 84, 18, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(84, 18, 421) = 1.