Greatest Common Factor of 660, 993, 621

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

• Greatest Common Factor of 660, 993, 621 by common division method
• Greatest Common Factor of 660, 993, 621 with matching the biggest common factor

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

Factors of 660

List of positive integer factors of 660 that divides 660 without a remainder.

1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660

Factors of 993

List of positive integer factors of 993 that divides 993 without a remainder.

1,3,331,993

Factors of 621

List of positive integer factors of 621 that divides 621 without a remainder.

1,3,9,23,27,69,207,621

Greatest Common Factor

We found the factors 660,993,621 . The biggest common factor number is the GCF number.
So the greatest common factor 660,993,621 is 3.

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

• GCF of 142, 220, 172
• GCF of 529, 684, 787
• GCF of 673, 293, 394
• GCF of 188, 897, 859
• GCF of 132, 263, 596

1. What is the GCF of 660, 993, 621?

Answer: GCF of 660, 993, 621 is 3.

2. How to Find the GCF of 660, 993, 621

Answer: Greatest Common Factor(GCF) of 660, 993, 621 = 3

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

Step 2: Then multiply all the prime factors GCF(660, 993, 621) = 3.