primechecking

noun
UK /ˈpraɪmˌtʃɛkɪŋ/
US /ˈpraɪmˌtʃɛkɪŋ/

Primechecking is when you check if a number can only be divided by one and itself.

The teacher gave us a primechecking puzzle to find all the prime numbers under twenty.


OTHER MEANINGS

2. The process of confirming that a number has no divisors other than one and itself.

Her primechecking routine quickly ruled out every even number.

3. A step in computer programs that decides whether a given number is prime.

The app uses fast primechecking to keep passwords secure.

4. Checking something for the first or best quality before use.

The chef did a primechecking of the ingredients before cooking.