python处理大数字的方法

本文实例讲述了python/' target='_blank'>python处理大数字的方法。分享给大家供大家参考。具体实现方法如下：

def getFactorial(n):  """returns the factorial of n"""  if n == 0:    return 1  else:    k = n * getFactorial(n-1)    return kfor k in range(1, 70):  print "factorial of", k,"=", getFactorial(k)

运行结果如下：

factorial of 1 = 1factorial of 2 = 2factorial of 3 = 6factorial of 4 = 24factorial of 5 = 120factorial of 6 = 720factorial of 7 = 5040factorial of 8 = 40320factorial of 9 = 362880factorial of 10 = 3628800factorial of 11 = 39916800factorial of 12 = 479001600factorial of 13 = 6227020800factorial of 14 = 87178291200factorial of 15 = 1307674368000factorial of 16 = 20922789888000factorial of 17 = 355687428096000factorial of 18 = 6402373705728000factorial of 19 = 121645100408832000factorial of 20 = 2432902008176640000factorial of 21 = 51090942171709440000factorial of 22 = 1124000727777607680000factorial of 23 = 25852016738884976640000factorial of 24 = 620448401733239439360000factorial of 25 = 15511210043330985984000000factorial of 26 = 403291461126605635584000000factorial of 27 = 10888869450418352160768000000factorial of 28 = 304888344611713860501504000000factorial of 29 = 8841761993739701954543616000000factorial of 30 = 265252859812191058636308480000000factorial of 31 = 8222838654177922817725562880000000factorial of 32 = 263130836933693530167218012160000000factorial of 33 = 8683317618811886495518194401280000000factorial of 34 = 295232799039604140847618609643520000000factorial of 35 = 10333147966386144929666651337523200000000factorial of 36 = 371993326789901217467999448150835200000000factorial of 37 = 13763753091226345046315979581580902400000000factorial of 38 = 523022617466601111760007224100074291200000000factorial of 39 = 20397882081197443358640281739902897356800000000factorial of 40 = 815915283247897734345611269596115894272000000000factorial of 41 = 33452526613163807108170062053440751665152000000000factorial of 42 = 1405006117752879898543142606244511569936384000000000factorial of 43 = 60415263063373835637355132068513997507264512000000000factorial of 44 = 2658271574788448768043625811014615890319638528000000000factorial of 45 = 119622220865480194561963161495657715064383733760000000000factorial of 46 = 5502622159812088949850305428800254892961651752960000000000factorial of 47 = 258623241511168180642964355153611979969197632389120000000000factorial of 48 = 12413915592536072670862289047373375038521486354677760000000000factorial of 49 = 608281864034267560872252163321295376887552831379210240000000000factorial of 50 = 30414093201713378043612608166064768844377641568960512000000000000factorial of 51 = 1551118753287382280224243016469303211063259720016986112000000000000factorial of 52 = 80658175170943878571660636856403766975289505440883277824000000000000factorial of 53 = 4274883284060025564298013753389399649690343788366813724672000000000000factorial of 54 = 230843697339241380472092742683027581083278564571807941132288000000000000factorial of 55 = 12696403353658275925965100847566516959580321051449436762275840000000000000factorial of 56 = 710998587804863451854045647463724949736497978881168458687447040000000000000factorial of 57 = 40526919504877216755680601905432322134980384796226602145184481280000000000000factorial of 58 = 2350561331282878571829474910515074683828862318181142924420699914240000000000000factorial of 59 = 138683118545689835737939019720389406345902876772687432540821294940160000000000000factorial of 60 = 8320987112741390144276341183223364380754172606361245952449277696409600000000000000factorial of 61 = 507580213877224798800856812176625227226004528988036003099405939480985600000000000000factorial of 62 = 31469973260387937525653122354950764088012280797258232192163168247821107200000000000000factorial of 63 = 1982608315404440064116146708361898137544773690227268628106279599612729753600000000000000factorial of 64 = 126886932185884164103433389335161480802865516174545192198801894375214704230400000000000000factorial of 65 = 8247650592082470666723170306785496252186258551345437492922123134388955774976000000000000000factorial of 66 = 544344939077443064003729240247842752644293064388798874532860126869671081148416000000000000000factorial of 67 = 36471110918188685288249859096605464427167635314049524593701628500267962436943872000000000000000factorial of 68 = 2480035542436830599600990418569171581047399201355367672371710738018221445712183296000000000000000factorial of 69 = 171122452428141311372468338881272839092270544893520369393648040923257279754140647424000000000000000

希望本文所述对大家的Python程序设计有所帮助。