# Greatest Common Factor of 2.1, 2.8, 3, 9.8

Handy GCF of Decimals Calculator to know the GCF of decimals 2.1, 2.8, 3, 9.8 i.e. 0.1 the largest integer that divides all the numbers leaving a remainder zero.

Greatest common factor (GCF) of 2.1, 2.8, 3, 9.8 is 0.1.

GCF(2.1, 2.8, 3, 9.8) = 0.1

## GCF of 2.1, 2.8, 3, 9.8

Enter two or more decimals separated by "commas"

Ex: 0.2, 0.3 or 0.4, 0.5, 0.6

GCF of:

Given numbers are 2.1,2.8,3,9.8. The highest number of digits after the decimal point in the given case is 1

Thus, in order to get rid of the decimal point we need to multiply them with 10. On doing so, they are as follows

2.1 x 10 = 21

2.8 x 10 = 28

3 x 10 = 30

9.8 x 10 = 98

On finding the GCF of 21,28,30,98 we get the Greatest Common Factor as 1

### Greatest Common Factor (GCF) of 21,28,30,98 By Common Division

∴ So GCF of numbers is 1 because of no common factors present between them.

Divide the GCF by 10 as we multiplied by it to make the given numbers as integers in the initial step.

By dividing the GCF we get = 1/10 = 0.1

Therefore the Greatest Common Factor of 2.1,2.8,3,9.8 is 0.1

Greatest Common Factor of 21,28,30,98 By Matching Biggest Common Factor Method

### Greatest Common Factor of 21,28,30,98 By Matching Biggest Common Factor Method

Factors of 21

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

1,3,7,21

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

Factors of 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Greatest Common Factor

We found the factors 21,28,30,98 . The biggest common factor number is the GCF number.
So the greatest common factor 21,28,30,98 is 1.

### GCF of Decimals Calculation Examples

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### Frequently Asked Questions on Decimal GCF of 2.1, 2.8, 3, 9.8

1. What is the GCF of 2.1, 2.8, 3, 9.8?

Answer: GCF of 2.1, 2.8, 3, 9.8 is 0.1.

2. How to Find the GCF of 2.1, 2.8, 3, 9.8?

Answer: Greatest Common Factor(GCF) of 2.1, 2.8, 3, 9.8 = 0.1

Step 1: First calculate the highest decimal number after decimal point.

Step 2: Then multiply all numbers with 10.

Step 3: Then find GCF of 21,28,30,98. After getting GCF devide the result with 10 the value that is previously multiplied.

So GCF(2.1, 2.8, 3, 9.8) = 0.1.