# What's the definition of a random number?

What sequence of numbers can I call as random number? What's the right way of getting $n$ random numbers?

Are the numbers generated by "dice", too known as random numbers? Can a machine (computer), simulate generation of random numbers like dice in real life?

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I suppose that you mean a fair dice. But there's nothing fair in life, not even dice and coins. – Asaf Karagila Jun 18 '13 at 14:55
@VishwasGagrani: Perhaps you can review my answer here: math.stackexchange.com/questions/255610/…. It would help to know for what purpose you want these (simulation versus cryptography). Regards – Amzoti Jun 18 '13 at 15:17
Well, i was browsing through wikipedia, and seen various studies over random number generation. So, just curious, what is so difficult about random numbers. As in real life, it's just a matter of speaking out a number from mouth! – Vishwas G Jun 18 '13 at 15:55
For some definitions try en.m.wikipedia.org/wiki/Random_sequence – Baby Dragon Jun 18 '13 at 16:16