Prime Curios!: 140

140
(another Prime Pages' Curiosity)

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The start of a record-breaking run of 7 consecutive integers (140-146) with an even number of prime factors. Note that 7 is the largest prime factor of 140. [Gupta]

Submitted: 2002-01-24 10:52:21; Last Modified: 2008-01-30 11:28:00.