Greatest Common Factor of 81, 420, 225

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

• Greatest Common Factor of 81, 420, 225 by common division method
• Greatest Common Factor of 81, 420, 225 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 225

List of positive integer factors of 225 that divides 225 without a remainder.

1,3,5,9,15,25,45,75,225

Greatest Common Factor

We found the factors 81,420,225 . The biggest common factor number is the GCF number.
So the greatest common factor 81,420,225 is 3.

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

• GCF of 84, 860, 735
• GCF of 49, 383, 882
• GCF of 47, 772, 921
• GCF of 97, 674, 582
• GCF of 37, 397, 613

1. What is the GCF of 81, 420, 225?

Answer: GCF of 81, 420, 225 is 3.

2. How to Find the GCF of 81, 420, 225

Answer: Greatest Common Factor(GCF) of 81, 420, 225 = 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, 225) = 3.