Prime numbers
An integer greater than 1 divisible only by 1 and itself.
Formula or test
p > 1 with no divisors other than 1 and p.
Examples
2 · 3 · 5 · 7 · 97
Members
9,592 numbers
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FAQ
- Is 1 prime?
- No. 1 is neither prime nor composite in the definition used here.
- What is the smallest prime?
- 2, the only even prime.