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The largest known prime number is 2 82,589,933 − 1, a number which has 24,862,048 digits when written in base 10. It was found via a computer volunteered by Patrick Laroche of the Great Internet Mersenne Prime Search (GIMPS) in 2018. [1] A 2020 plot of the number of digits in the largest known prime by year, since the electronic computer.
Dunbar's number is a suggested cognitive limit to the number of people with whom one can maintain stable social relationships—relationships in which an individual knows who each person is and how each person relates to every other person. [ 1][ 2] This number was first proposed in the 1990s by British anthropologist Robin Dunbar, who found a ...
Other large numbers regarding length and time are found in astronomy and cosmology.For example, the current Big Bang model suggests that the universe is 13.8 billion years (4.355 × 10 17 seconds) old, and that the observable universe is 93 billion light years across (8.8 × 10 26 metres), and contains about 5 × 10 22 stars, organized into around 125 billion (1.25 × 10 11) galaxies ...
The PDF of the paper. " Why Most Published Research Findings Are False " is a 2005 essay written by John Ioannidis, a professor at the Stanford School of Medicine, and published in PLOS Medicine. [1] It is considered foundational to the field of metascience . In the paper, Ioannidis argued that a large number, if not the majority, of published ...
Demographics of the world. Demographics of Earth. Population pyramid of the world in 2022 by the UN. Population. Over 8,120,531,329 (estimated) Fertility rate. 2.27 (2021) Earth has a human population of over 8 billion as of 2024, with an overall population density of 50 people per km 2 (130 per sq. mile). Nearly 60% of the world's population ...
Population density is the number of people per unit of area, usually transcribed as "per square kilometer" or square mile, and which may include or exclude, for example, areas of water or glaciers. Commonly this is calculated for a county, city, country, another territory or the entire world . The world's population is around 8,000,000,000 [ 3 ...
A relatively large number of people are lost in Switzerland due to accidents in alpine sports. In the event of melting glaciers, the police have issued instructions on how to deal with the bodies: photograph the finds, mark them, write down the coordinates and, if there is a risk that the finds or their location may not be found a second time ...
An estimate on the "total number of people who have ever lived" as of 1995 was calculated by Haub (1995) at "about 105 billion births since the dawn of the human race" with a cut-off date at 50,000 BC (beginning of the Upper Paleolithic), and inclusion of a high infant mortality rate throughout pre-modern history.