Greatest Common Factor of 990, 21, 387

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

• Greatest Common Factor of 990, 21, 387 by common division method
• Greatest Common Factor of 990, 21, 387 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 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Factors of 21

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

1,3,7,21

Factors of 387

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

1,3,9,43,129,387

Greatest Common Factor

We found the factors 990,21,387 . The biggest common factor number is the GCF number.
So the greatest common factor 990,21,387 is 3.

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

• GCF of 417, 50, 647
• GCF of 278, 37, 827
• GCF of 833, 63, 996
• GCF of 462, 69, 803
• GCF of 622, 40, 776

1. What is the GCF of 990, 21, 387?

Answer: GCF of 990, 21, 387 is 3.

2. How to Find the GCF of 990, 21, 387

Answer: Greatest Common Factor(GCF) of 990, 21, 387 = 3

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

Step 2: Then multiply all the prime factors GCF(990, 21, 387) = 3.