- Unity
- The even prime
- The only consecutive prime
- First perfect square
- The first elder twin prime
- First squarefree composite
- Perfect number in Babylonian numerology
- First perfect cube
- First non-unity Kaprekar number
- Base.
- Landed on the moon.
- First sublime number.
- Months in a lunar year.
- Fortnight
- Quarter of an hour.
- Lowest perfect forth.
- "The most random number"
- Chapters in Ulysses
- The impossible cribbage score
- First primitive abundant number
- Spots on a standard die
- Paths in the tree of life
- Read the Illuminatus Trilogy an you'll see where the whole fuss started.
- Squares in a tesseract
- First aspiring number
- Number of cards of a given color in a deck of cards.
- Plastic parts in a Rubik's cube
- Only natural number with a unique Kayles nim-value.
- First number that is a Pell prime and a Pillai prime
- First sphenic number.
- Number of triads in the standard twelve tone musical system
- First perfect fifth
- Bones in typical human spine
- The first semiprime Markov number
- Youngest age at which one can legally become president of the USA.
- Number of Tzadikim Nistarim
- First irregular prime
- Number of minutes a Stargate can stay open if not fed by an external power source.
- First perfect totient semiprime Perrin number
- First pentagonal pyramidal semiperfect octagonal Størmer number
- First centered-square (natural Einstein Proth) cousin prime
- The Answer
Friday, August 22, 2014
Counting
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43. Smallest prime that is not a Chen prime.
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