The book is now available! 419
(another Prime Pages' Curiosity)
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+ The Nigerian Advance Fee Scheme (also known internationally as "4-1-9" fraud after the section of the Nigerian penal code which addresses fraud schemes) is generally targeted at small and medium sized businesses, as well as charities. [Croll]

+ Dutch microscopy pioneer and naturalist Anton van Leeuwenhoek (1632-1723) ground a total of 419 lenses during his life. [Oakes]

+ 419 is the smallest number which when divided by 2, 3, 4, 5, 6 and 7 leaves remainders of 1, 2, 3, 4, 5 and 6 respectively. It is also interesting to note that 419 is one less than the least common multiple of the first 7 integers. [Tryczak]

+ 419 is a Sophie Germain prime, since 2 * 419 + 1 = 839, which is prime. Note that it is the 22nd Sophie Germain prime, and 22 = 2 * 11 is the product of two Sophie Germain primes. [Carmichael]

+ 419, 41, and 19 are all primes. The reversals of 419, 41, and 19 are all semiprimes. [Poo Sung]

+ Milligrams of potassium in one-half cup cooked spinach. [Karcher]

+ (419*22n + 1)/3 can never be prime. [Wesolowski]

(There are 5 curios for this number that have not yet been approved by an editor.)




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