Greatest Common Factor of 21, 66, 150

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

• Greatest Common Factor of 21, 66, 150 by common division method
• Greatest Common Factor of 21, 66, 150 with matching the biggest common factor

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∴ 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 150

List of positive integer factors of 150 that divides 150 without a remainder.

1,2,3,5,6,10,15,25,30,50,75,150

Greatest Common Factor

We found the factors 21,66,150 . The biggest common factor number is the GCF number.
So the greatest common factor 21,66,150 is 3.

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

• GCF of 54, 51, 860
• GCF of 25, 92, 809
• GCF of 81, 80, 697
• GCF of 89, 48, 976
• GCF of 55, 71, 789

1. What is the GCF of 21, 66, 150?

Answer: GCF of 21, 66, 150 is 3.

2. How to Find the GCF of 21, 66, 150

Answer: Greatest Common Factor(GCF) of 21, 66, 150 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 66, 150) = 3.