Greatest Common Factor of 546, 638, 21

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

• Greatest Common Factor of 546, 638, 21 by common division method
• Greatest Common Factor of 546, 638, 21 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 546

List of positive integer factors of 546 that divides 546 without a remainder.

1,2,3,6,7,13,14,21,26,39,42,78,91,182,273,546

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

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 546,638,21 . The biggest common factor number is the GCF number.
So the greatest common factor 546,638,21 is 1.

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

• GCF of 166, 316, 41
• GCF of 134, 995, 80
• GCF of 460, 721, 46
• GCF of 190, 374, 22
• GCF of 987, 683, 45

1. What is the GCF of 546, 638, 21?

Answer: GCF of 546, 638, 21 is 1.

2. How to Find the GCF of 546, 638, 21

Answer: Greatest Common Factor(GCF) of 546, 638, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(546, 638, 21) = 1.