52.1M - 52.5M to 63 bits
 

Next range is a little bit bigger than my previous one. Will keep me occupied for some time :wink:.
I'll update you every 100k so that the exponents will be available for other hunters.

52.1 to 52.2 finished to 2^63.

2373 exponents tested, 44 factors found (1,85%)

52.2 to 52.3 finished to 2^63.

2400 exponents tested, 33 factors (1,375%)

52.3 to 52.4 finished to 2^63.

2545 exponents tested, 36 factors (1,415%)

52.4 to 52.5 finished to 2^63.

2483 exponents tested, 35 factors (1,41%)

Range is finished, next range is 52.5 to 53.0 to 2^63

52.5 to 52.6 finished to 2^63.

2363 exponents tested, 43 factors (1,82%)

52.6 to 52.7 finished to 2^63.

2480 exponents tested, 33 factors (1,33%)

52.7 to 52.8 finished to 2^63.

2447 exponents tested, 44 factors (1,8%)

52.8 to 52.9 finished to 2^63.

2397 exponents tested, 56 factors (2.34%)

52.9 to 53.0 finished to 2^63.

2506 exponents tested, 44 factors (1.75%)

Range finally finished...