Greatest Common Factor of 20, 27, 30, 225

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

• Greatest Common Factor of 20, 27, 30, 225 by common division method
• Greatest Common Factor of 20, 27, 30, 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 20

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

1,2,4,5,10,20

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

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 20,27,30,225 . The biggest common factor number is the GCF number.
So the greatest common factor 20,27,30,225 is 1.

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

• GCF of 22, 92, 17, 849
• GCF of 23, 90, 55, 592
• GCF of 37, 36, 65, 373
• GCF of 92, 37, 24, 110
• GCF of 25, 58, 47, 817

1. What is the GCF of 20, 27, 30, 225?

Answer: GCF of 20, 27, 30, 225 is 1.

2. How to Find the GCF of 20, 27, 30, 225

Answer: Greatest Common Factor(GCF) of 20, 27, 30, 225 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 27, 30, 225) = 1.