Greatest Common Factor of 186, 387, 21

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

• Greatest Common Factor of 186, 387, 21 by common division method
• Greatest Common Factor of 186, 387, 21 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 186

List of positive integer factors of 186 that divides 186 without a remainder.

1,2,3,6,31,62,93,186

Factors of 387

List of positive integer factors of 387 that divides 387 without a remainder.

1,3,9,43,129,387

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 186,387,21 . The biggest common factor number is the GCF number.
So the greatest common factor 186,387,21 is 3.

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

• GCF of 278, 445, 54
• GCF of 336, 826, 57
• GCF of 927, 415, 29
• GCF of 530, 747, 70
• GCF of 387, 284, 26

1. What is the GCF of 186, 387, 21?

Answer: GCF of 186, 387, 21 is 3.

2. How to Find the GCF of 186, 387, 21

Answer: Greatest Common Factor(GCF) of 186, 387, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(186, 387, 21) = 3.