On December 27, 2017 our “4000 Chebyshev Bias Tester” completed testing all primes up to 10*10^{14 }and found 3 first and previously unknown sign-changing zones for ∆{24;17,1}(x), where the value of ∆{24;17,1}(x) equals to -1.

The first prime of these zones is equal to 617139273158713 and is close to 6.18*10^{14}, predicted by Americam mathematicians Richard H. Hudson and Kevin Ford back in 2001.

We will publish our results in the near future.