(50g) Integer Cube Root of an Integer

[rprosperi]

(09-02-2017 03:34 PM)Gerald H Wrote:  For a random 1000 digit number

33723332557553775353525757337573537755533522772333232727225373253275725533335725​27325352752552573533222555227325357735332722375322535733533357722577325522733537​22235277532535355573272752525725227232537255772272757257527237257753332727532572​73327232573752273222237775335227233255273532577535572353227753773757222523352237​22525757355532355535723335557752773733555333732222737255732752335355532352737727​25275753355322773722522255535357537273523327777757235335733357535377323227722775​72252537733375735527537325777753357533273727575335727257327253772727233237537522​23733772357772257737732225553352323372277333273325325352557275755222353722537332​52737773327332777253377752353222323577223275257722273575357223737723575273533225​35777235737222727575772757573223575375222233277233752352773775273227357573557753​72275225532532322223772373575352252555552237577775733733523277325773755253527377​25532772333735733533753327773275227327573532275372557727335525352752377255353752​7735327732557323757327355353375255332733

I imagine my comment is unrelated to your program, but this does not look like a "random" number to me, it contains only the digits 2,3, 5 and 7.