Greatest Common Factor of 38, 9, 28, 30

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

• Greatest Common Factor of 38, 9, 28, 30 by common division method
• Greatest Common Factor of 38, 9, 28, 30 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 9

List of positive integer factors of 9 that divides 9 without a remainder.

1,3,9

Factors of 28

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

1,2,4,7,14,28

Factors of 30

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

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

Greatest Common Factor

We found the factors 38,9,28,30 . The biggest common factor number is the GCF number.
So the greatest common factor 38,9,28,30 is 1.

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

• GCF of 85, 8, 53, 50
• GCF of 32, 3, 94, 69
• GCF of 54, 2, 69, 69
• GCF of 10, 3, 31, 80
• GCF of 86, 5, 33, 55

1. What is the GCF of 38, 9, 28, 30?

Answer: GCF of 38, 9, 28, 30 is 1.

2. How to Find the GCF of 38, 9, 28, 30

Answer: Greatest Common Factor(GCF) of 38, 9, 28, 30 = 1

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

Step 2: Then multiply all the prime factors GCF(38, 9, 28, 30) = 1.