Greatest Common Factor of 309, 51, 78

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

• Greatest Common Factor of 309, 51, 78 by common division method
• Greatest Common Factor of 309, 51, 78 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 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 78

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

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

Greatest Common Factor

We found the factors 309,51,78 . The biggest common factor number is the GCF number.
So the greatest common factor 309,51,78 is 3.

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

• GCF of 368, 93, 63
• GCF of 644, 66, 52
• GCF of 298, 29, 66
• GCF of 820, 78, 11
• GCF of 289, 83, 12

1. What is the GCF of 309, 51, 78?

Answer: GCF of 309, 51, 78 is 3.

2. How to Find the GCF of 309, 51, 78

Answer: Greatest Common Factor(GCF) of 309, 51, 78 = 3

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

Step 2: Then multiply all the prime factors GCF(309, 51, 78) = 3.