231*2^465391-1 (140100 digits)

From the 2995125705 part of the 15k project:

2995125705*2^629062-1 (189377 digits).

This is #195 on the top 5000 list.

[QUOTE=lsoule]From the 2995125705 part of the 15k project:

2995125705*2^629062-1 (189377 digits).

This is #195 on the top 5000 list.[/QUOTE]

I want to find another big prime too :confused: :down:

Luigi

231 498961

100280245065 180000
100280245065 186519
100280245065 200558

3710369067405 185721

Thanks to Kosmaj for pointing out that 3710369067405 is 37#/2
and 100280245065 in the previous post is 31#/2 where
n# is the multiplication of all primes up to n.

231*2^535713-1 (161269 digits)

100280245065*2^223124-1 (67179 digits)

8331405 186251
8331405 198122

8331405 199127
8331405 200363
8331405 205885
8331405 207555 :w00t:

868409685*2^164339-1 is prime!
 

868409685*2^164339-1 is prime! Time : 229.952 sec.

(but too small to be indexed)

No other primes in range.

/ puh_32

8331405 is still producing. The last 3 listed here are reported
by L83. Voznyy if you read this, please let me know what
ranges you're searching so we don't duplicate effort.
I've re-started my search from 400k on.

8331405 220532
8331405 222399
8331405 264459
8331405 269433
8331405 274141

6555 211720
6555 235260
6555 236514

118275 187734
1155 183159
9915 222175

8331405 433420
65395 214477
1965 226308
307515 207331
29445 193358
5865 187673