Landon Curt Noll

Landon Curt Noll (born October 28, 1960)[1][2] is an American computer scientist, co-discoverer of the 25th Mersenne prime and discoverer of the 26th,[3] which he found while still enrolled at Hayward High School and concurrently at California State University, Hayward.[4]

Landon Curt Noll
Born (1960-10-28) October 28, 1960
Other nameschongo, Lord Ogden
Alma materCalifornia State University, East Bay and Linfield College
Known forInternational Obfuscated C Code Contest
Fowler Noll Vo hash
Prime number
Vulcanoid asteroid
Names of large numbers
AwardsUSENIX Lifetime Achievement Award (contributor - 1993)
Scientific career
FieldsMathematics and Cryptography and Astronomy
InstitutionsLawrence Livermore National Laboratory and Fremont Peak Observatory
Held or co-held 8 World records relating to large prime numbers. Common username: chongo


Noll was born in Walnut Creek, California, United States. At age 18, he became the youngest person to break the record for the largest known prime. He has held or co-held the record three times.[5] He is also the co-inventor (with John Horton Conway) of a system for naming arbitrarily large powers of 10.[6][7] He also helped start the International Obfuscated C Code Contest,[8] and is a co-inventor of the Fowler Noll Vo hash function.[9]

He was also a member of the Amdahl Six[10] team (John S. Brown, Bodo Parady, Curt Landon Noll, Gene W. Smith, Joel F. Smith, and Sergio E. Zarantonello) which discovered another record prime in 1989; this prime remains unusual as a record large prime as it was not a Mersenne prime.[11][12]

Noll is an astronomer.[13][14] His work includes measuring the Solar parallax during the 2004 Transit of Venus[15] as well as the search for Vulcanoid asteroids.[16]

He was also involved in politics as a Sunnyvale, California city council member and vice-mayor.[17]


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.