English version

prime number

From Longman Dictionary of Contemporary English
Related topics: Numbers
prime 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 Corpus
prime 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.
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.