Greatest Common Factor of 21, 55, 200

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

• Greatest Common Factor of 21, 55, 200 by common division method
• Greatest Common Factor of 21, 55, 200 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 21

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

1,3,7,21

Factors of 55

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

1,5,11,55

Factors of 200

List of positive integer factors of 200 that divides 200 without a remainder.

1,2,4,5,8,10,20,25,40,50,100,200

Greatest Common Factor

We found the factors 21,55,200 . The biggest common factor number is the GCF number.
So the greatest common factor 21,55,200 is 1.

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

• GCF of 38, 47, 464
• GCF of 39, 84, 559
• GCF of 25, 99, 505
• GCF of 64, 10, 633
• GCF of 20, 95, 345

1. What is the GCF of 21, 55, 200?

Answer: GCF of 21, 55, 200 is 1.

2. How to Find the GCF of 21, 55, 200

Answer: Greatest Common Factor(GCF) of 21, 55, 200 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 55, 200) = 1.