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PUZZLET 221

Prime Factors

Find 5 contintuous integers (that is, 5 integers in ascending order, each one higher than the last), and all of which have the same number of prime factors as the number of digits they contain.

For example, 46 has two prime factors, 2 and 23, and 46 has two digits, so it is eligible.  If it were to have another four adjacent integers with those same properties, it would be the solution, but not in this case.




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Last Updated: August 22nd, 2010.