Composite


It’s a shame. We thought we had found a 40th Mersenne Prime, but alas, the double checks found that it actually isn’t prime. Oh well.

Advertisements

About Simon

Hi. I'm Simon Rubinstein-Salzedo. I'm a mathematics postdoc at Dartmouth College. I'm also a musician; I play piano and cello, and I also sometimes compose music and study musicology. I also like to play chess and write calligraphy. This blog is a catalogue of some of my thoughts. I write them down so that I understand them better. But sometimes other people find them interesting as well, so I happily share them with my small corner of the world.
This entry was posted in Uncategorized and tagged . Bookmark the permalink.

3 Responses to Composite

  1. z9r4c3 says:

    aww…
    that’s a pity. Is that the one they’re searching for now?

    • Simon says:

      Re: aww…
      We know of 39. The first check on this one yielded that it was prime, but then two double checks were done, and they yielded the same nonzero residue in the Lucas-Lehmer test, so it’s not prime.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s