Greatest Common Factor of 27, 10, 21, 903

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

• Greatest Common Factor of 27, 10, 21, 903 by common division method
• Greatest Common Factor of 27, 10, 21, 903 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 27

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

1,3,9,27

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 21

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

1,3,7,21

Factors of 903

List of positive integer factors of 903 that divides 903 without a remainder.

1,3,7,21,43,129,301,903

Greatest Common Factor

We found the factors 27,10,21,903 . The biggest common factor number is the GCF number.
So the greatest common factor 27,10,21,903 is 1.

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

• GCF of 88, 66, 27, 134
• GCF of 39, 47, 78, 978
• GCF of 18, 71, 90, 108
• GCF of 91, 58, 51, 785
• GCF of 42, 27, 55, 271

1. What is the GCF of 27, 10, 21, 903?

Answer: GCF of 27, 10, 21, 903 is 1.

2. How to Find the GCF of 27, 10, 21, 903

Answer: Greatest Common Factor(GCF) of 27, 10, 21, 903 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 10, 21, 903) = 1.