Just a year before his death in 1920 at the age of 32, mathematician Srinivasa Ramanujan came upon a remarkable pattern in a special list of whole numbers.
The list represented counts of how many ways a given whole number can be expressed as a sum of positive integers. For example, 4 can be written as 3 + 1, 2 + 2, 2 + 1 + 1, and 1 + 1 + 1 + 1. Including 4 itself but...
A participant in the Great Internet Mersenne Prime Search (GIMPS) has identified the largest prime number yet. When printed out, its digits would fill more than 450 pages of Science News.
Discovered by 20-year-old Michael Cameron of Owen Sound, Ontario, the new champion prime is 213,466,917 – 1, which runs to 4,053,946 decimal digits.
A prime is a whole number evenly divisible by...