Meet the new largest known prime number. It starts with a 4, continues on for 23 million digits, then ends with a 1. As is true with all prime numbers, it can only be evenly divided by one and itself.

As of October 2024, we have found the biggest prime number we know of — and it took almost 6 years to find it. To generate this number, you multiply 2 by itself 136,279,841 times (resulting in an ...

Prime numbers are only divisible by themselves and one. Robert Brook via Getty Images In the 17th century, French monk and mathematician Marin Mersenne developed a method to find prime numbers: values ...