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+ (x/log x)(1 + 0.992/log x) < pi(x) <(x/log x)(1 + 1.2762/log x), when x is greater than or equal to the prime number 599. [Dusart]

+ The number in the street address of the Administrative building at Saint-Prime (599, rue Principale, Saint-Prime, Québec, Canada). [Blanchette]

+ The smallest prime whose digits form a triangle with the largest prime perimeter. [Loungrides]

+ The smallest prime that creates other primes when sandwiched between two-digit repdigits in three ways: (15991, 35993, 75997). [Loungrides]

+ The 599th beastly number is 220666. This is the smallest case in which the sum of digits of a beastly number (22) is less than the sum of digits of its beastly index (23). Is there any example in which sums of digits are equal? [Gaydos]

+ Historically, subprime (also referred to as "non-prime") borrowers were defined as having FICO scores of 599 and below.

(There are 2 curios for this number that have not yet been approved by an editor.)




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