How many decimal places are in the product of 1.91 and 2.3?

The answer to this question is 3

if you are adding these it is 4.21

if you are multiplying these it is 4.393

if its how much space between the two it is 13 decimal difference

1.91, 1.92, 1.93, 1.94, 1.95, 1.96, 1.97, 1.98, 1.99, 2.0, 2.1, 2.2, 2.3

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