Greatest Common Factor of 81, 780, 138

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

• Greatest Common Factor of 81, 780, 138 by common division method
• Greatest Common Factor of 81, 780, 138 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 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Greatest Common Factor

We found the factors 81,780,138 . The biggest common factor number is the GCF number.
So the greatest common factor 81,780,138 is 3.

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

• GCF of 35, 468, 446
• GCF of 54, 446, 536
• GCF of 58, 150, 616
• GCF of 47, 317, 889
• GCF of 92, 933, 945

1. What is the GCF of 81, 780, 138?

Answer: GCF of 81, 780, 138 is 3.

2. How to Find the GCF of 81, 780, 138

Answer: Greatest Common Factor(GCF) of 81, 780, 138 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 780, 138) = 3.