Greatest Common Factor of 21, 89, 225

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

• Greatest Common Factor of 21, 89, 225 by common division method
• Greatest Common Factor of 21, 89, 225 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 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 225

List of positive integer factors of 225 that divides 225 without a remainder.

1,3,5,9,15,25,45,75,225

Greatest Common Factor

We found the factors 21,89,225 . The biggest common factor number is the GCF number.
So the greatest common factor 21,89,225 is 1.

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

• GCF of 20, 22, 423
• GCF of 29, 90, 377
• GCF of 87, 68, 197
• GCF of 87, 14, 528
• GCF of 74, 33, 907

1. What is the GCF of 21, 89, 225?

Answer: GCF of 21, 89, 225 is 1.

2. How to Find the GCF of 21, 89, 225

Answer: Greatest Common Factor(GCF) of 21, 89, 225 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 89, 225) = 1.