7.11 is a rational number because it can be expressed as a fraction in the form of 711/100
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Because a prime number is a number that can only be divided on itself and 1, and 711 can be divided on, for instance, 3.
4.6 is rational.
711 = 3 x 237 = 3 x 3 x 79 As 79 is prime, that's it and that's all!
No, it is rational.