JKC: is that so indeed? my minuscule math tells me that if something (any long number - or short) ends with a "1" then the* MINUS 1* of this number ends in a zero, dividable e.g. by 2, even 10 etc... 22 million digits??? John M
On Wed, Jan 20, 2016 at 1:26 PM, John Clark <[email protected]> wrote: > The largest known prime number has just been found, 2^74207281 -1 is > prime; it starts off as 300376 carries on for a bit and then concludes with > 436351. I omitted the middle bit because the entire number is 22,338,618 > digits long. > > > https://www.washingtonpost.com/news/speaking-of-science/wp/2016/01/20/the-newest-prime-number-is-more-than-22-million-digits-long/ > > John K Clark > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
