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Topic: irregular primes less than 1000
Replies: 4   Last Post: May 13, 2013 8:07 AM

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David Bernier

Posts: 3,187
Registered: 12/13/04
irregular primes less than 1000
Posted: May 11, 2013 11:03 AM
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Using bernfrac() for Bernoulli numbers in PARI/gp,
and work related to Kummer's criterion, I find
64 irregular primes less than 1000, copied below.

Does that sound right?

Ref.:

< http://en.wikipedia.org/wiki/Regular_prime > .

List:
-----------------------------
37 59 67 101 103
131 149 157 233 257
263 271 283 293 307
311 347 353 379 389
401 409 421 433 461
463 467 491 523 541
547 557 577 587 593
607 613 617 619 631
647 653 659 673 677
683 691 727 751 757
761 773 797 809 811
821 827 839 877 881
887 929 953 971
-----------------------------



David Bernier
--
99997066781489109195113098994290469881614963208468



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