62

This number is a composite.

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The largest known even number that cannot be expressed as the sum of two odd semiprimes. The sum of the prime factors of this semiprime gives the largest known number that cannot be expressed as the sum of two semiprimes. [Capelle]

Submitted: 2009-03-22 06:16:28;   Last Modified: 2009-03-22 09:09:50.
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