Wreck of the RMS Titanic of the film, made using a model of "Titanic", it would not have been physically possible. At the time of the book's writing, it was still believed that she sank in one piece. Robert Ballard of the Woods Hole Oceanographic Institution had long been interested in finding "Titanic". Despite early negotiations with possible backers being abandoned when it emerged that they wanted to turn the wreck into souvenir paperweights, more sympathetic backers joined Ballard to form a company named Seasonics International Ltd. as a vehicle for rediscovering and exploring "Titanic". In October 1977 he made his first attempt to find
Titanic prime the prime number theorem. The first discovered titanic primes were the Mersenne primes 2−1 (with 1281 digits), and 2−1 (with 1332 digits). They were both found November 3, 1961, by Alexander Hurwitz. It is a matter of definition which one was discovered first, since the primality of 2−1 was computed first, but Hurwitz saw the computer output about 2−1 first. Samuel Yates called those who proved the primality of a titanic prime "titans". Titanic prime Titanic prime is a term coined by Samuel Yates in the 1980s, denoting a prime number of at least 1000 decimal digits. Few such primes