Is 3.1415 a rational or irrational number?

Answer 1

3.1415 is rational (as are all other terminating decimals). Note that these are some of the first few digits of pi (3.14159…, which really should be rounded to 3.1416 not 5); pi is an irrational number. Approximations of pi are generally rational numbers.

Answer 2

Oh, dude, 3.1415 is actually an irrational number. It goes on and on forever without repeating, kind of like my ex talking about her feelings. So yeah, it's irrational, but hey, aren't we all a little irrational sometimes?