Prime Curios!: 6983

6983
(another Prime Pages' Curiosity)

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The smallest prime which can only be made into one other prime with the same number of digits (6883) by changing a single digit. Change any other digit and get a composite. 0983 is not a 4-digit prime, but the 3-digit prime 983. [Post]

Submitted: 2009-07-16 10:39:29; Last Modified: 2010-02-08 21:04:12.