Greatest Common Factor of 27, 21, 90, 250

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

• Greatest Common Factor of 27, 21, 90, 250 by common division method
• Greatest Common Factor of 27, 21, 90, 250 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 21

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

1,3,7,21

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 250

List of positive integer factors of 250 that divides 250 without a remainder.

1,2,5,10,25,50,125,250

Greatest Common Factor

We found the factors 27,21,90,250 . The biggest common factor number is the GCF number.
So the greatest common factor 27,21,90,250 is 1.

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

• GCF of 74, 90, 28, 484
• GCF of 85, 42, 17, 369
• GCF of 42, 80, 92, 520
• GCF of 57, 20, 48, 697
• GCF of 14, 29, 60, 174

1. What is the GCF of 27, 21, 90, 250?

Answer: GCF of 27, 21, 90, 250 is 1.

2. How to Find the GCF of 27, 21, 90, 250

Answer: Greatest Common Factor(GCF) of 27, 21, 90, 250 = 1

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

Step 2: Then multiply all the prime factors GCF(27, 21, 90, 250) = 1.