On 18 September 2021, 06:50:25 UTC, PrimeGrid’s Primorial Prime Search, through PRPNet found the mega prime:
The prime is 1,418,398 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 1st for Primorial primes and 286th overall.
The discovery was made by James Winskill (Aeneas) of New Zealand using an Intel(R) Xeon(R) W-2125 CPU @ 4.00GHz with 64GB RAM running Windows 10. This computer took 20 hours 32 minutes to complete the prp test using pfgw64. James Winskill is a member of the PrimeSearchTeam.
The prp was verified on 26 September 2021, 01:56:46 UTC by an Intel i7-7700K @ 4.2 GHz with 16 GB RAM, running Gentoo/Linux. This computer took a little over 5 days 8 hours 38 minutes to verify primality of the prp using pfgw64.
For more details, please see the official announcement.