email me External Links: Calculate bit size of factor:

How far with Prime95 trial-factor an exponent?


Default Prime95 TF limits: ref
TF limitMin ExponentMax Exponent
2400999,999
2561,000,0001,479,999
2571,480,0001,929,999
2581,930,0002,359,999
2592,360,0002,949,999
2602,950,0003,959,999
2613,960,0005,159,999
2625,160,0006,514,999
2636,515,0008,249,999
2648,250,00013,379,999
26513,380,00023,389,999
26623,390,00029,689,999
26729,690,00038,299,999
26838,300,00048,799,999
26948,800,00060,939,999
27060,940,00077,909,999
27177,910,00096,829,999
27296,830,000119,999,999
273120,000,000153,399,999
274153,400,000199,499,999
275199,500,000253,499,999
276253,500,000322,099,999
277322,100,000408,399,999
278408,400,000516,799,999
279516,800,000599,999,999
280600,000,000