Greatest Common Factor of 90, 28, 309

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

• Greatest Common Factor of 90, 28, 309 by common division method
• Greatest Common Factor of 90, 28, 309 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 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Greatest Common Factor

We found the factors 90,28,309 . The biggest common factor number is the GCF number.
So the greatest common factor 90,28,309 is 1.

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

• GCF of 60, 70, 125
• GCF of 50, 10, 930
• GCF of 54, 81, 627
• GCF of 99, 92, 701
• GCF of 16, 74, 879

1. What is the GCF of 90, 28, 309?

Answer: GCF of 90, 28, 309 is 1.

2. How to Find the GCF of 90, 28, 309

Answer: Greatest Common Factor(GCF) of 90, 28, 309 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 28, 309) = 1.