Certainly! See http://oeis.org/A008578 Neil On Tue, Feb 4, 2014 at 8:39 PM, James Buddenhagen <jbuddenh@gmail.com>wrote:
Back in 1914 the number 1 was a prime. At least according to D. N. Lehmer. See D. N. Lehmer, List of primes numbers from 1 to 10,006,721, Carnegie Institution Washington, D.C., 1914
On Tue, Feb 4, 2014 at 1:38 PM, Andy Latto <andy.latto@pobox.com> wrote:
On Tue, Feb 4, 2014 at 2:12 PM, Eugene Salamin <gene_salamin@yahoo.com> wrote:
According to a friend who volunteers in the Santa Cruz CA Public Schools, the official view is that 1 is a prime, because its only divisors are 1 and itself. However, a teacher did mention that in more advanced mathematics, 1 is not a prime.
Do they also teach that unique factorization is false? Or is it stated as "numbers > 1 have a unique factorization into primes other than 1"?
Andy
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