738197503
This number is a prime.
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738197503 + 1 is the first composite with 27 prime factors (11*2^26). The next prime that has a composite upper neighbor with more prime factors is 2147483647 (the 8th Mersenne prime). [Pfoertner]
Submitted: 2004-09-12 18:31:35; Last Modified: 2008-01-30 17:28:00.
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