prime number in Numbers topic

From Longman Dictionary of Contemporary Englishprime numberˌprime ˈnumber noun [countable]    HMNa number that can be divided only by itself and the number one. For example, three and seven are prime numbers.Examples from the Corpusprime numberA prime number is a number that is not exactly divisible by any other number.If not, a different prime number should be selected and the process repeated.