Greatest Common Factor of 203, 684, 21

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

• Greatest Common Factor of 203, 684, 21 by common division method
• Greatest Common Factor of 203, 684, 21 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 203

List of positive integer factors of 203 that divides 203 without a remainder.

1,7,29,203

Factors of 684

List of positive integer factors of 684 that divides 684 without a remainder.

1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Greatest Common Factor

We found the factors 203,684,21 . The biggest common factor number is the GCF number.
So the greatest common factor 203,684,21 is 1.

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

• GCF of 489, 731, 99
• GCF of 587, 477, 81
• GCF of 530, 868, 86
• GCF of 602, 591, 96
• GCF of 504, 515, 29

1. What is the GCF of 203, 684, 21?

Answer: GCF of 203, 684, 21 is 1.

2. How to Find the GCF of 203, 684, 21

Answer: Greatest Common Factor(GCF) of 203, 684, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(203, 684, 21) = 1.