Greatest Common Factor of 81, 78, 27, 45

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

• Greatest Common Factor of 81, 78, 27, 45 by common division method
• Greatest Common Factor of 81, 78, 27, 45 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

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 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Greatest Common Factor

We found the factors 81,78,27,45 . The biggest common factor number is the GCF number.
So the greatest common factor 81,78,27,45 is 3.

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

• GCF of 38, 61, 79, 30
• GCF of 42, 95, 53, 74
• GCF of 95, 54, 14, 59
• GCF of 78, 11, 18, 50
• GCF of 26, 21, 22, 81

1. What is the GCF of 81, 78, 27, 45?

Answer: GCF of 81, 78, 27, 45 is 3.

2. How to Find the GCF of 81, 78, 27, 45

Answer: Greatest Common Factor(GCF) of 81, 78, 27, 45 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 78, 27, 45) = 3.