This number is a prime.
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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]