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A LITTLE SOMETHING WORTH KNOWING

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Math & LogicOne small ahaNumber theory

Is 1 prime?

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Your new ahaNo

A prime number is a positive integer greater than one with exactly two positive divisors. Source: Prime number ↗

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More from Primes & Factors

A few more worth knowing.

  1. 08Is 2 prime?RECALL
    Yes

    Its divisors are 1 and 2

    Open this card ↗
  2. 09Is 51 prime?RECALL
    No

    51 = 3 × 17

    Open this card ↗
  3. 10Is 97 prime?RECALL
    Yes

    Only divisible by 1 and 97

    Open this card ↗