Which product is rational?

15⋅4.398671....

14⋅36−−√14 times square root of 36

12⋅11−−√12 times square root of 11

13⋅π

1 answer

the last three all include disasters
√14 = √2 * √7 and √7 is irrational, the 3 in 4 times 3 is also a problem
square root 11 is irrational
pi is hopelessly irrational