To the 9th Class student of bvrsss, the number you gave is a Mersenne prime. It may be the largest Mersenne known up to the date you found it, but that is not true now, they find a new larger one at the rate of about once a year, it is now above 2 raised to the (77,232,917) -1. There can never be a largest prime. Euclid proved that. You can use the GIMPS algorithm (The Great Internet Mersenne Prime Search algorithm to find a new Mersenne prime, if you are so inclined. The 50th one was found in 2017 by Jonathan Pace using GIMPS day and night fo fourteen years.

To the 9th Class student of bvrsss, the number you gave is a Mersenne prime. It may be the largest Mersenne known up to the date you found it, but that is not true now, they find a new larger one at the rate of about once a year, it is now above 2 raised to the (77,232,917) -1. There can never be a largest prime. Euclid proved that. You can use the GIMPS algorithm (The Great Internet Mersenne Prime Search algorithm to find a new Mersenne prime, if you are so inclined. The 50th one was found in 2017 by Jonathan Pace using GIMPS day and night fo fourteen years.