What Makes Numbers Prime — And Why Should You Care?

Prime numbers are like the most special cookies in a jar, they can’t be divided evenly by anything else except 1 and themselves. Imagine you have a cookie jar with only cookies that aren’t shared with anyone, not even half. That’s what prime numbers feel like! For example, number 5 is prime because if you try to split it into groups of 2 or 3, you always end up with leftovers.

Take the quiz →

Examples

  1. If you have 7 cookies and try to divide them among 2 people, each person gets only 3 with one left over, that’s how prime numbers work!
  2. Number 11 is also a prime number because dividing it by any other number like 2 or 3 always leaves leftovers.
  3. Even the number 2 is special, it's not just even but also a prime number.

Ask a question

See also

Discussion

Recent activity