Researchers discover new record-setting prime number

KANSAS CITY, Mo. - Mathematicians at the University of Central Missouri have discovered a record-setting prime number that's so large it would take about 6,000 pages of paper to print, the school announced Thursday.

See Full Article

The 22.3-million-digit discovery is the 49th known Mersenne prime number and the fourth discovered at the university. Primes are numbers such as 3, 7 and 11 that are divisible only by themselves and 1 without leaving a remainder.

Computer science and mathematics professor Curtis Cooper said he feels "pretty fortunate because there is some luck involved."

Mersenne primes are named after the 17th century French mathematician who discovered them, Marin Mersenne. They're expressed as 2P-1, or 2 to the power of "P" minus 1. P is itself a prime number. For the new prime, P is 74,207,281.

The number was independently verified, according to the Great Internet Mersenne Prime Search, a co-operative in which underused computing power is harnessed to perform the calculations needed to find and verify Mersenne primes.

The organization said in a news release that prime numbers are important for cryptography but that the newly discovered number is currently too large for that purpose. One benefit of Mersenne primes is testing computer hardware.



Advertisements

Latest Tech & Science News

  • U.S. government backs down on request for visitor logs of Trump protest website

    Tech & Science CBC News
    The U.S. government is revising its request for data from an anti-Trump protest site to exclude a log of its visitors, according to a brief filed in Superior Court today, saying it has "no interest" in the records. Source
  • Researchers harness human waste to make products in space

    Tech & Science CBC News
    Deep space missions come with challenges, not the least of which is limited storage space. But scientists are finding ways to reduce the amount of supplies and costly shipments astronauts need on missions, partly by making use of what's already on hand — including human waste. Source
  • Researchers harness human urine to make products in space

    Tech & Science CBC News
    Deep space missions come with challenges, not the least of which is limited storage space. But scientists are finding ways to reduce the amount of supplies and costly shipments astronauts need on missions, partly by making use of what's already on hand — including human waste. Source
  • Two newest astronauts moonstruck as Canada looks beyond space station

    Tech & Science CTV News
    MONTREAL -- Canada's two newest astronauts are already looking beyond the International Space Station as they begin two years of intense basic training. Joshua Kutryk points out that Canada is committed to the space station until 2024 along with its international partners. Source
  • Farming has changed climate almost as much as deforestation

    Tech & Science CBC News
    Agriculture has contributed nearly as much to climate change as deforestation by intensifying global warming, according to U.S. research that has quantified the amount of carbon taken from the soil by farming. Some 121 billion tonnes (133 billion tons) of carbon have been removed from the top two metres of the earth's soil over the last two centuries by agriculture at a rate that is increasing, said the study in PNAS, a journal published by the National Academy of Sciences. Source
  • Water down your whisky for better flavour: scientists

    Tech & Science CBC News
    On the rocks, neat, or with water? Ask whisky fans and you'll find it's a contentious topic. However, researchers in Sweden say mixing your scotch with water is the best way to maximize the flavours. Source
  • Parents warned to monitor teen use of app Sarahah

    Tech & Science CTV News
    WINNIPEG - The Canadian Centre for Child Protection is warning parents of the dangers of an app popular with teens called Sarahah. The app allows users to send anonymous "constructive criticism" to friends and co-workers, but critics say it has turned into a platform for cyberbullying and harassment. Source
  • Canada's new astronauts take tips from veterans in space

    Tech & Science CBC News
    Canada's two new astronaut recruits will get a chance to pick the brains of the experienced astronauts currently working aboard the space station today. They'll also speak publicly for the last time before heading for two years of intensive basic training at Johnson Space Center in Houston, Texas. Source
  • Google's next version of Android will be called 'Oreo'

    Tech & Science CBC News
    An upcoming update to Google's Android software finally has a delectable name. The next version will be known as Oreo, extending Google's tradition of naming each version after a sweet treat. L’ready or not, you’ve made it to the sweet treat hall of fame. Source
  • After Lollipop. Marshmallow and Nougat, here comes Oreo

    Tech & Science CBC News
    An upcoming update to Google's Android software finally has a delectable name. The next version will be known as Oreo, extending Google's tradition of naming each version after a sweet treat. L’ready or not, you’ve made it to the sweet treat hall of fame. Source