# Records set using primecount

Below is a selection of records that have been computed using primecount. For a
more complete list [search for primecount on OEIS.org](https://oeis.org/search?q=primecount&language=english&go=Search).
There is also a [mersenneforum thread](https://www.mersenneforum.org/showthread.php?t=20473)
where we have announced important records as well as details about these computations.
If you have used primecount to compute an important new record please let me know
and I will add your record to this page. Please note that most of these records
have been computed using the
[primecount version with backup support](https://github.com/kimwalisch/primecount/tree/backup3#primecount-backup)
as these record computations often take weeks or months to complete and power
outage(s) may occur in such time frames.

## [A006880](https://oeis.org/A006880) records

     x
     Number of primes ≤ 10n
     Date
     Computed by

     1027
     16,352,460,426,841,680,446,427,399
     2015-09-06
     Kim Walisch & David Baugh

     1028
     157,589,269,275,973,410,412,739,598
     2020-08-30
     Kim Walisch & David Baugh

For verification, all results on this page have been computed twice using
different alpha tuning parameters (configuration parameters).
PrimePi(1028) was successfully verified on the 27th October 2020.
You can read our initial PrimePi(1028) announcement and the  
successful verification announcement in our
[mersenne forum thread](https://mersenneforum.org/showthread.php?t=20473&page=3).

## [A006988](https://oeis.org/A006988) records

     x
     10n-th prime
     Date
     Computed by

     1023
     5,596,564,467,986,980,643,073,683
     2015-10-09
     David Baugh

     1024
     58,310,039,994,836,584,070,534,263
     2015-10-20
     David Baugh

## [A007053](https://oeis.org/A007053) records

     x
     Number of primes ≤ 2n
     Date
     Computed by

     287
     2,610,087,356,951,889,016,077,639
     2018-11-28
     David Baugh

     288
     5,159,830,247,726,102,115,466,054
     2019-01-05
     David Baugh

     289
     10,201,730,804,263,125,133,012,340
     2020-05-09
     David Baugh

     290
     20,172,933,541,156,002,700,963,336
     2020-10-07
     David Baugh

     291
     39,895,115,987,049,029,184,882,256
     2020-11-14
     David Baugh

     292
     78,908,656,317,357,166,866,404,346
     2020-12-02
     David Baugh

## [A040014](https://oeis.org/A040014) records

     x
     Number of primes < en
     Date
     Computed by

     e48
     14,936,302,130,478,888,296
     2015-03-07
     David Baugh

     e49
     39,754,427,477,873,197,008
     2015-03-07
     David Baugh

     e50
     105,856,368,969,311,706,141
     2015-03-07
     David Baugh

     e51
     281,987,525,487,483,629,729
     2015-03-07
     David Baugh

     e52
     751,479,276,811,434,164,860
     2015-03-10
     David Baugh

     e53
     2,003,417,881,848,387,803,588
     2015-03-25
     David Baugh

     e54
     5,343,023,851,430,824,336,740
     2015-04-10
     David Baugh

     e55
     14,254,686,649,867,417,156,723
     2015-05-17
     David Baugh

     e56
     38,043,242,922,236,683,117,535
     2015-08-03
     David Baugh

     e57
     101,564,348,447,358,891,206,901
     2015-09-08
     David Baugh

     e58
     27,123,381,893,146,940,4637,903
     2016-08-24
     David Baugh

     e59
     724,569,999,669,566,733,678,976
     2020-08-04
     David Baugh

     e60
     1,936,182,213,929,180,232,892,229
     2020-10-22
     David Baugh

## [A122121](https://oeis.org/A122121) records

     x
     Number of primes ≤ 10n/2
     Date
     Computed by

     1047/2
     5,956,317,545,928,249,075,039
     2015-02-23
     David Baugh

     1049/2
     57,086,403,558,149,290,301,868
     2015-04-27
     David Baugh

     1051/2
     548,074,549,053,620,897,173,483
     2015-06-18
     David Baugh

     1053/2
     5,270,353,162,790,246,525,701,178
     2016-08-31
     David Baugh

