# Greatest Common Factor of 4.2, 12.6, 21

Handy GCF of Decimals Calculator to know the GCF of decimals 4.2, 12.6, 21 i.e. 4.2 the largest integer that divides all the numbers leaving a remainder zero.

Greatest common factor (GCF) of 4.2, 12.6, 21 is 4.2.

GCF(4.2, 12.6, 21) = 4.2

## GCF of 4.2, 12.6, 21

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 4.2,12.6,21. 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

4.2 x 10 = 42

12.6 x 10 = 126

21 x 10 = 210

On finding the GCF of 42,126,210 we get the Greatest Common Factor as 42

### Greatest Common Factor (GCF) of 42,126,210 By Common Division

 2 42, 126, 210 3 21, 63, 105 7 7, 21, 35 1, 3, 5

∴ So the GCF of the given numbers is 2 x 3 x 7 = 42

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 = 42/10 = 4.2

Therefore the Greatest Common Factor of 4.2,12.6,21 is 4.2

Greatest Common Factor of 42,126,210 By Matching Biggest Common Factor Method

### Greatest Common Factor of 42,126,210 By Matching Biggest Common Factor Method

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 126

List of positive integer factors of 126 that divides 126 without a remainder.

1,2,3,6,7,9,14,18,21,42,63,126

Factors of 210

List of positive integer factors of 210 that divides 210 without a remainder.

1,2,3,5,6,7,10,14,15,21,30,35,42,70,105,210

Greatest Common Factor

We found the factors 42,126,210 . The biggest common factor number is the GCF number.
So the greatest common factor 42,126,210 is 42.

### GCF of Decimals Calculation Examples

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### Frequently Asked Questions on Decimal GCF of 4.2, 12.6, 21

1. What is the GCF of 4.2, 12.6, 21?

Answer: GCF of 4.2, 12.6, 21 is 4.2.

2. How to Find the GCF of 4.2, 12.6, 21?

Answer: Greatest Common Factor(GCF) of 4.2, 12.6, 21 = 4.2

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 42,126,210. After getting GCF devide the result with 10 the value that is previously multiplied.

So GCF(4.2, 12.6, 21) = 4.2.