Greatest Common Factor of 55, 21, 33

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

• Greatest Common Factor of 55, 21, 33 by common division method
• Greatest Common Factor of 55, 21, 33 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 21

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

1,3,7,21

Factors of 33

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

1,3,11,33

Greatest Common Factor

We found the factors 55,21,33 . The biggest common factor number is the GCF number.
So the greatest common factor 55,21,33 is 1.

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

• GCF of 73, 32, 77
• GCF of 30, 38, 47
• GCF of 95, 62, 63
• GCF of 87, 96, 65
• GCF of 40, 72, 25

1. What is the GCF of 55, 21, 33?

Answer: GCF of 55, 21, 33 is 1.

2. How to Find the GCF of 55, 21, 33

Answer: Greatest Common Factor(GCF) of 55, 21, 33 = 1

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

Step 2: Then multiply all the prime factors GCF(55, 21, 33) = 1.