Greatest Common Factor of 20, 225, 171

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

• Greatest Common Factor of 20, 225, 171 by common division method
• Greatest Common Factor of 20, 225, 171 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

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

Factors of 171

List of positive integer factors of 171 that divides 171 without a remainder.

1,3,9,19,57,171

Greatest Common Factor

We found the factors 20,225,171 . The biggest common factor number is the GCF number.
So the greatest common factor 20,225,171 is 1.

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

• GCF of 21, 346, 785
• GCF of 99, 482, 223
• GCF of 14, 378, 317
• GCF of 28, 710, 997
• GCF of 10, 508, 814

1. What is the GCF of 20, 225, 171?

Answer: GCF of 20, 225, 171 is 1.

2. How to Find the GCF of 20, 225, 171

Answer: Greatest Common Factor(GCF) of 20, 225, 171 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 225, 171) = 1.