On Saturday, August 21, the Five or Bust project has reached a new milestone in the quest to find a prime for the multiplier k = 22699.

https://www.primegrid.com/stats_sob_llr.php
22699 has become the first of the five multipliers to exceed an exponent of 35 million (35,000,000). In fact, it is now considerably far above 35 million while the other four are still in the 34****** range. The exponent as of late is

**35,438,302**, more than 500,000 numbers higher than the next highest exponent:

**34,898,787** for k = 67607.

It has been nearly five years (half a decade) since the discovery of a prime number for k = 10223 on Halloween of 2016, but let's keep working to (hopefully) find primes for the remaining five. If found, it will make history as it will be the first non-Mersenne prime number with over 10 million digits to be discovered. On this day in 2008, the Mersenne prime M(43112609) became our first known 10 million digit prime and its discoverer won an award for it when the prime was verified and made public in September of that year. As that prime enters its teen years today, let's do like we do any other day: to keep the spirit alive in finding the Proth primes for the remaining five multipliers!