Greatest Common Factor of 78, 66, 189

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

• Greatest Common Factor of 78, 66, 189 by common division method
• Greatest Common Factor of 78, 66, 189 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Greatest Common Factor

We found the factors 78,66,189 . The biggest common factor number is the GCF number.
So the greatest common factor 78,66,189 is 3.

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

• GCF of 69, 61, 121
• GCF of 83, 61, 319
• GCF of 74, 89, 338
• GCF of 84, 40, 724
• GCF of 16, 84, 677

1. What is the GCF of 78, 66, 189?

Answer: GCF of 78, 66, 189 is 3.

2. How to Find the GCF of 78, 66, 189

Answer: Greatest Common Factor(GCF) of 78, 66, 189 = 3

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

Step 2: Then multiply all the prime factors GCF(78, 66, 189) = 3.