212
This number is a composite.
Just showing those entries submitted by 'Patterson': (Click here to show all)
Besides being the Fahrenheit boiling point of water at sea level, 212 produces a prime of the form k^10+k^9+...+k^2+k+1, when k=212. [Patterson]
The smallest even three-digit integer, abc, such that (abc)/(a*b*c) is also prime. [Patterson]
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