Greatest Common Factor of 81, 420, 180

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

• Greatest Common Factor of 81, 420, 180 by common division method
• Greatest Common Factor of 81, 420, 180 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 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 180

List of positive integer factors of 180 that divides 180 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,30,36,45,60,90,180

Greatest Common Factor

We found the factors 81,420,180 . The biggest common factor number is the GCF number.
So the greatest common factor 81,420,180 is 3.

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

• GCF of 19, 391, 586
• GCF of 29, 188, 334
• GCF of 25, 656, 396
• GCF of 68, 648, 550
• GCF of 87, 317, 767

1. What is the GCF of 81, 420, 180?

Answer: GCF of 81, 420, 180 is 3.

2. How to Find the GCF of 81, 420, 180

Answer: Greatest Common Factor(GCF) of 81, 420, 180 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 420, 180) = 3.