Range of multifactorial primes tested by Marian Otremba n!-1 3 - 3,248 3,507 3,610 6,917 21,480 34,790 94,550 103,040 147,855 n!+1 3 - 3,248 6,380 26,951 110,059 150,209 n!2-1 4 - 5,982 n!2+1 4 - 5,982 n!3-1 5 - 8,572 110,000 - 405,866 n!3+1 5 - 8,572 100,005 - 405,866 n!4-1 6 - 11,077 150,000 - 167,061 n!4+1 6 - 11,077 150,006 - 167,061 n!5-1 7 - 13,522 100,000 - 615,695 n!5+1 7 - 13,522 100,007 - 615,695 n!6-1 8 - 15,921 100,000 - 242,408 n!6+1 8 - 15,921 100,008 - 242,408 n!7-1 9 - 18,283 n!7+1 9 - 18,283 n!8-1 10 - 20,614 100,000 - 315,875 n!8+1 10 - 20,614 107,2010 - 315,875 n!9-1 11 - 22,919 110,000 - 352,083 n!9+1 11 - 22,919 110,0011 - 352,083 n!10-1 12 - 25,201 120,000 - 388,002 n!10+1 12 - 25,201 120,0012 - 388,002 n!11-1 13 - 27,463 275,260 - 616,191 n!11+1 13 - 27,463 272,911 - 616,191 n!12-1 14 - 29,706 108,100 - 209,890 250,000 - 459,094 n!12+1 14 - 29,706 150,0014 - 459,094 n!13-1 15 - 31,933 150,000 - 270,000 300,000 - 719,210 n!13+1 15 - 31,933 150,0015 - 719,210 n!14-1 16 - 34,147 200,000 - 529,348 n!14+1 16 - 34,147 200,0016 - 529,348 n!15-1 17 - 36,346 190,000 - 821,141 n!15+1 17 - 36,346 170,0017 - 821,141 n!16-1 18 - 38,530 210,000 - 598,898 n!16+1 18 - 38,530 170,0018 - 598,898 n!17-1 19 - 40,705 200,000 - 922,149 n!17+1 19 - 40,705 210,0019 - 922,149 n!18-1 20 - 42,868 270,000 - 667,846 n!18+1 20 - 42,868 210,0020 - 667,846 n!19-1 21 - 45,022 220,000 - 1,022,354 n!19+1 21 - 45,022 200,0021 - 1,022,354 n!20-1 22 - 47,165 200,001 - 260,000 288,575 - 736,265 n!20+1 22 - 47,165 200,001 - 260,000 290,701 - 736,265 n!21-1 23 - 49,300 280,000 - 1,121,854 n!21+1 23 - 49,300 212,049 - 1,121,854 n!22-1 24 - 51,426 240,000 - 804,216 n!22+1 24 - 51,426 240,0024 - 804,216 n!23-1 25 - 53,545 257,275 - 500,000 n!23+1 25 - 53,545 571,375 - 620,000 n!24-1 26 - 55,657 300,000 - 871,748 n!24+1 26 - 55,657 300,0026 - 871,748 n!25-1 27 - 57,757 260,000 - 1,319,026 n!25+1 27 - 57,757 260,0027 - 1,319,026 n!26-1 28 - 938,897 n!26+1 28 - 938,897 n!27-1 29 - 1,416,807 n!27+1 29 - 1,416,807 n!28-1 30 - 1,005,701 n!28+1 30 - 1,005,701 n!29-1 31 - 1,514,118 n!29+1 31 - 1,514,118 n!30-1 32 - 1,072,182 n!30+1 32 - 1,072,182 n!31-1 33 - 1,610,986 n!31+1 33 - 1,610,986 n!32-1 34 - 1,138,370 n!32+1 34 - 1,138,370 n!33-1 35 - 1,707,453 n!33+1 35 - 1,707,453 n!34-1 36 - 1,204,282 n!34+1 36 - 1,204,282 n!35-1 37 - 1,803,537 n!35+1 37 - 1,803,537 n!36-1 38 - 1,269,937 n!36+1 38 - 1,269,937 n!37-1 39 - 1,899,268 n!37+1 39 - 1,899,268 n!38-1 40 - 702,107 n!38+1 40 - 702,107 n!39-1 41 - 719,200 n!39+1 41 - 719,200 n!40-1 42 - 736,254 n!40+1 42 - 736,254 n!41-1 43 - 754,000 n!41+1 43 - 754,000 n!42-1 44 - 770,285 n!42+1 44 - 770,285 n!43-1 45 - 788,000 n!43+1 45 - 788,000 n!44-1 46 - 804,204 n!44+1 46 - 804,204 n!45-1 47 - 821,124 n!45+1 47 - 821,124 n!46-1 48 - 838,023 n!46+1 48 - 838,023 n!47-1 49 - 855,000 n!47+1 49 - 855,000 n!48-1 50 - 871,734 n!48+1 50 - 871,734 n!49-1 51 - 889,000 n!49+1 51 - 889,000 n!50-1 52 - 905,355 n!50+1 52 - 905,355 n!51-1 53 - 922,133 n!51+1 53 - 922,133 n!52-1 54 - 938,883 n!52+1 54 - 938,883 n!53-1 55 - 955,615 n!53+1 55 - 955,615 n!54-1 56 - 972,327 n!54+1 56 - 972,327 n!55-1 57 - 989,015 n!55+1 57 - 989,015 n!56-1 58 - 1,005,687 n!56+1 58 - 1.005,687 n!57-1 59 - 1,022,337 n!57+1 59 - 1,022,337 n!58-1 60 - 1,038,963 n!58+1 60 - 1,038,963 n!59-1 61 - 1,055,575 n!59+1 61 - 1,055,575 n!60-1 62 - 1,072,168 n!60+1 62 - 1,072,168 n!61-1 63 - 1,088,738 n!61+1 63 - 1,088,738 n!62-1 64 - 1,105,293 n!62+1 64 - 1,105,293 n!63-1 65 - 1,121,838 n!63+1 65 - 1,121,838 n!64-1 66 - 1,138,356 n!64+1 66 - 1,138,356 n!65-1 67 - 1,154,857 n!65+1 67 - 1,154,857 n!66-1 68 - 1,171,342 n!66+1 68 - 1,171,342 n!67-1 69 - 1,187,810 n!67+1 69 - 1,187,810 n!68-1 70 - 1,204,267 n!68+1 70 - 1,204,267 n!69-1 71 - 1,220,698 n!69+1 71 - 1,220,698 n!70-1 72 - 1,237,119 n!70+1 72 - 1,237,119 n!71-1 73 - 1,253,524 n!71+1 73 - 1,253,524 n!72-1 74 - 1,269,921 n!72+1 74 - 1,269,921 n!73-1 75 - 1,286,291 n!73+1 75 - 1,286,291 n!74-1 76 - 1,302,651 n!74+1 76 - 1,302,651 n!75-1 77 - 1,319,001 n!75+1 77 - 1,319,001 n!76-1 78 - 1,335,329 n!76+1 78 - 1,335,329 n!77-1 79 - 1,351,655 n!77+1 79 - 1,351,655 n!78-1 80 - 1,367,958 n!78+1 80 - 1,367,958 n!79-1 81 - 1,384,242 n!79+1 81 - 1,384,242 n!80-1 82 - 1,400,515 n!80+1 82 - 1,400,515 n!81-1 83 - 1,416,778 n!81+1 83 - 1,416,778 n!82-1 84 - 1,433,034 n!82+1 84 - 1,433,034 n!83-1 85 - 1,449,267 n!83+1 85 - 1,449,267 n!84-1 86 - 1,465,487 n!84+1 86 - 1,465,487 n!85-1 87 - 1,481,707 n!85+1 87 - 1.481.707 n!86-1 88 - 1,497,898 n!86+1 88 - 1,497.898 n!87-1 89 - 1,514,083 n!87+1 89 - 1,514,083 n!88-1 90 - 1,530,257 n!88+1 90 - 1,530,257 n!89-1 91 - 1,546,422 n!89+1 91 - 1,546,422 n!90-1 92 - 1,562,581 n!90+1 92 - 1,562,581 n!91-1 93 - 1,578,710 n!91+1 93 - 1,578,710 n!92-1 94 - 1,594,835 n!92+1 94 - 1,594,835 n!93-1 95 - 1,610,953 n!93+1 95 - 1,610,953 n!94-1 96 - 1,627,057 n!94+1 96 - 1,627,057 n!95-1 97 - 1,643,149 n!95+1 97 - 1,643,149 n!96-1 98 - 1,659,239 n!96+1 98 - 1,659,239 n!97-1 99 - 1,675,303 n!97+1 99 - 1,675,303 n!98-1 100 - 1,691,376 n!98+1 100 - 1,691,376 n!99-1 101 - 1,707,419 n!99+1 101 - 1,707,419 n!100-1 102 - 1,723,457 n!100+1 102 - 1,723,457 n!101-1 103 - 1,739,488 n!101+1 103 - 1,739,488 n!121-1 123 - 2,058,054 n!121+1 123 - 2,058,054 n!125-1 127 - 2,121,344 n!125+1 127 - 2,121,344 n!128-1 130 - 2,168,716 n!128+1 130 - 2,168,716