11

This number is a prime.

Just showing those entries submitted by 'Gaydos': (Click here to show all)

+ There is only one case of three consecutive primes all ending in 11 among the first billion primes. Can you find them? [Gaydos]

+ The concatenation of the first 11 factorial numbers is the first such number that is pandigital. [Gaydos]

+ There are exactly 11 Yarborough primes that have sum of digits equal to 11. [Gaydos]

+ There are eleven strobogrammatic numbers with distinct digits (0, 1, 8, 69, 96, 609, 619, 689, 906, 916, 986). [Gaydos]

+ The largest number of zeros occurring in the square of a ten-digit pandigital number. [Gaydos]

+ The product of the first 11 factorial numbers is the first such number that is pandigital. [Gaydos]

(There is one curio for this number that has not yet been approved by an editor.)

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