99997777555533331111
This number is a composite.
9999777755 5533331111
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The integer 99997777555533331111, made entirely from nonascending odd digits, factors into primes made entirely from odd digits: 9999 7777 5555 3333 1111 = 11 x 101 x 90007000500030001. [Post]
Submitted: 2004-10-08 16:19:48; Last Modified: 2008-01-30 17:28:00.
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