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Does it continue? 2: Prime or not? (Posted on 2017-09-16) Difficulty: 3 of 5
Before trying the problems "note your opinion as to whether the observed pattern is known to continue, known not to continue, or not known at all."

Is 7013*2n+1 always composite?

Is 78557*2n+1 always composite?

No Solution Yet Submitted by Jer    
Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(3): Does it continue? Comment 6 of 6 |
(In reply to re(2): Does it continue? by Math Man)

MM

Actually, Jer specifically asked for preconceptions, not an answer.

Hence I replied:

"Having looked at the forthcoming problems in the queue, without attempting to solve: "

These were guesses, not answers


Edited on September 23, 2017, 11:23 pm
  Posted by broll on 2017-09-23 23:06:44

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