Samuel Yates (May 10, 1919 in Savannah, Georgia – April 22, 1991 in New Brunswick, New Jersey) was a computer engineer and mathematician who first described unique primes in 1980.[1] In 1984 he began the list of "Largest Known Primes" (today The Prime Pages) and coined the name titanic prime for any prime with 1,000 or more decimal digits. He also called those who proved their primality "titans".[citation needed] He also coined the term gigantic prime for any prime with 10,000 or more decimal digits.[citation needed] He is the author of Repunits and Repetends.[2]