Greatest Common Factor of 33, 21, 69, 90

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

• Greatest Common Factor of 33, 21, 69, 90 by common division method
• Greatest Common Factor of 33, 21, 69, 90 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 33

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

1,3,11,33

Factors of 21

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

1,3,7,21

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Greatest Common Factor

We found the factors 33,21,69,90 . The biggest common factor number is the GCF number.
So the greatest common factor 33,21,69,90 is 3.

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

• GCF of 76, 61, 68, 94
• GCF of 50, 23, 46, 54
• GCF of 14, 87, 46, 80
• GCF of 90, 71, 93, 84
• GCF of 28, 75, 91, 17

1. What is the GCF of 33, 21, 69, 90?

Answer: GCF of 33, 21, 69, 90 is 3.

2. How to Find the GCF of 33, 21, 69, 90

Answer: Greatest Common Factor(GCF) of 33, 21, 69, 90 = 3

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

Step 2: Then multiply all the prime factors GCF(33, 21, 69, 90) = 3.