- ID
- 2846692
- Banca
- COMVEST - UNICAMP
- Órgão
- UNICAMP
- Ano
- 2018
- Provas
- Disciplina
- Inglês
- Assuntos
Largest prime number discovered: with more than 23m
digits
Known simply as M77232917, the figure is arrived at by
calculating two to the power of 77,232,917 and subtracting
one, leaving a gargantuan string of 23,249,425 digits. The
result is nearly one million digits longer than the previous
record holder discovered in January 2016. The number
belongs to a rare group of so-called Mersenne prime
numbers, named after the 17th century French monk Marin
Mersenne. Like any prime number, a Mersenne prime is
divisible only by itself and one, but is derived by multiplying
twos together over and over before taking away one. The
previous record-holding number was the 49th Mersenne
prime ever found, making the new one the 50th.
(Adaptado de Ian Sample, “Largest prime number discovered: with more than
23m digits”. The Guardian, 04/ 01/2018.)
Considerando as informações contidas no excerto anterior,
qual dos números a seguir é um primo de Mersenne?