Historical eventNovember 131996

Great Internet Mersenne Prime Search

As part of the Great Internet Mersenne Prime Search (GIMPS) project, Joel Armengaud discovers the project's first Mersenne prime number,

30th anniversary in 2026

Everything on November 13Original source

In context

When
Wednesday, November 13 199630 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
20th century · 1990s
Anniversary
30th in 2026
Recorded from
Wikipedia “On this day” feed

At a glance

Dates: From 1996.

What happened

As part of the Great Internet Mersenne Prime Search (GIMPS) project, Joel Armengaud discovers the project's first Mersenne prime number,

November 13 through the years

Other entries on the same calendar day, in order.

  1. 19941994 Swedish European Union membership referendum
  2. 1995Mozambique
  3. 1995Nigeria Airways Flight 357
  4. 1996Great Internet Mersenne Prime Search
  5. 2000Philippines
  6. 2001War on terror
  7. 2002Iraq disarmament crisis
  8. 2012Solar eclipse
  9. 2015Islamic State
  10. 2015November 2015 Paris attacks
  11. 20222022 Idaho student murders

Also in 1996

  • May 11ValuJet Flight 592After the aircraft's departure from Miami, a fire started by improperly handled chemical oxygen generators in the cargo hold of Atlanta-b…
  • September 16Space Shuttle AtlantisSpace Shuttle Atlantis is launched on STS-79 to dock with the Russian space station Mir.
  • September 5Hurricane FranHurricane Fran makes landfall near Cape Fear, North Carolina as a Category 3 storm with 115 mph sustained winds. Fran caused over $3 bill…
  • June 14ForeclosureAfter an 81-day standoff sparked by their refusal to be evicted from their foreclosed property in Jordan, Montana, the Christian Patriot…
  • August 14Killing of Solomos SolomouGreek Cypriot refugee Solomos Solomou is shot and killed by a Turkish security officer while trying to climb a flagpole in order to remov…
  • July 5Dolly (sheep)Dolly the sheep becomes the first mammal cloned from an adult cell.
  • November 5President of PakistanPakistani President Farooq Leghari dismisses the government of Prime Minister Benazir Bhutto and dissolves the National Assembly.
  • November 5Bill ClintonBill Clinton is reelected President of the United States.

Everything we record for 1996 →

Sources

Cite this page

“Great Internet Mersenne Prime Search”, What's On This Date, https://whatsonthisdate.com/app/event/great-internet-mersenne-prime-search-1996-november-13, accessed October 25, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did Great Internet Mersenne Prime Search happen?

November 13 1996 — 30 years ago, on a Wednesday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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