For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...
This month, GIMPS, the Great Internet Mersenne Prime Search, announced the discovery of the largest known prime number: 2<sup>74,207,281</sup>-1. That's two, multiplied 74,207,281 times, with 1 ...
Naturally, I couldn't resist. I started with my cell phone number, which is the product of three small primes and an 8-digit prime (for obvious reasons, I won't say what they are). What about my ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback