Former Nvidia Engineer Discovers 41-Million-Digit Prime

Former Nvidia engineer Luke Durant, working with the Great Internet Mersenne Prime Search (GIMPS), recently discovered the largest known prime number: (2^136,279,841)-1 or M136279841 (where the number following the letter M represents the exponent). The achievement was detailed on Mersenne.org. Tom's Hardware reports: This is the largest prime number we've seen so far, with the last one, M82589933, being discovered six years prior. What makes this discovery particularly fascinating is that this is the first GIMPS discovery that used the power of data center GPUs. Mihai Preda was the first one to harness GPU muscle in 2017, says the GIMPS website, when he "wrote the GpuOwl program to test Mersenne numbers for primarilty, making his software available to all GIMPS users." When Luke joined GIMPS in 2023, they built the infrastructure needed to deploy Preda's software across several GPU servers available in the cloud.
 
While it took a year of testing, Luke's efforts finally bore fruit when an A100 GPU in Dublin, Ireland gave the M136279841 result last October 11. This was then corroborated by an Nvidia H100 located in San Antonio, Texas, which confirmed its primality with the Lucas-Lehmer test.
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