Greatest Common Factor of 21, 18, 60, 33, 495

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

• Greatest Common Factor of 21, 18, 60, 33, 495 by common division method
• Greatest Common Factor of 21, 18, 60, 33, 495 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Factors of 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

Factors of 495

List of positive integer factors of 495 that divides 495 without a remainder.

1,3,5,9,11,15,33,45,55,99,165,495

Greatest Common Factor

We found the factors 21,18,60,33,495 . The biggest common factor number is the GCF number.
So the greatest common factor 21,18,60,33,495 is 3.

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

• GCF of 88, 45, 12, 83, 381
• GCF of 37, 67, 50, 63, 312
• GCF of 84, 57, 42, 15, 182
• GCF of 90, 62, 92, 81, 112
• GCF of 41, 10, 65, 27, 545

1. What is the GCF of 21, 18, 60, 33, 495?

Answer: GCF of 21, 18, 60, 33, 495 is 3.

2. How to Find the GCF of 21, 18, 60, 33, 495

Answer: Greatest Common Factor(GCF) of 21, 18, 60, 33, 495 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 18, 60, 33, 495) = 3.