Simple way to hold numbers with a lot of

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Simple way to hold numbers with a lot of

Simple way to hold numbers with a lot of decimal numbers

I have a task to hold a number like 4.0000000000000000199e+30 and, in a variable like long double (the largest of the data type) doesn't hold the whole number, holds only 4.099e+30, like that.

Do you have any advice to hold the whole number?

krakow10 (21)

Perhaps no longer simple, but could you use a string?

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Simple way to hold numbers with a lot of decimal numbers