A random number is a number that is chosen by chance, with no pattern or predictability. It can be any number and is not linked to anything specific. Full definition
And then we discovered that they were worse than bad: when applied to a really simple record of temperature, they performed worse than a table of random numbers. (cato.org)
Students need to simulate or describe how to simulate a range of things using random numbers. (tes.com)
The contest closed yesterday at 5 pm and I picked a winner by random number from my entire list of followers. (travelcodex.com)