1844-1850 complete. no primes.

Taking 1852-1856 (2)

Complete;

[URL="http://www.grense.no/prime/completed/15-1834-1836-lresults.txt"]1834-1836[/URL]

1852-1856 complete. no primes.

1850-1852 complete, no primes.

Taking 1856-1858.

1,836,000-1,844,000 complete, 1 prime: [URL="http://primes.utm.edu/primes/page.php?id=85967"]15*2^1837873-1[/URL]

I reported under L632, however I'm unsure if that gives proper credit. Please let me know if its incorrect (Sievers?)

Thanks to all involved!

:) :) :)

Also taking; 1858-1862 (2 files)

Congratulations mcduck. Almost 2 years since the last prime.

L632 will do. There is no need to credit the sievers. You could credit the sieving program. It was actually sieved with NewPGen and a very early version of srsieve created solely to sieve k=15 before Geoff created the generic version sr1sieve.

mcduck
 

Huge congrats on a nice prime!!

As I told you the primes are here! Now let me try to find one by myself. :smile:

1856-1858 complete, no primes.

Taking 1862-1864.

1858-1862 complete, no primes

Taking 1864-1866

Happy holidays all!

[URL="http://www.grense.no/prime/completed/15-1864-1866-lresults.txt"]1864-1866[/URL] complete, no primes.

Taking 1866-1868

[QUOTE=mcduck;153574]1,836,000-1,844,000 complete, 1 prime: [URL="http://primes.utm.edu/primes/page.php?id=85967"]15*2^1837873-1[/URL]

I reported under L632, however I'm unsure if that gives proper credit. Please let me know if its incorrect (Sievers?)

Thanks to all involved!

:) :) :)

Also taking; 1858-1862 (2 files)[/QUOTE]

Good grief, spectacular find - 70th largest prime found to date!!!