good at arithmetic? try this

Luis G

Luis G

<i><b>Problemator</b></i>
Staff member
Alexis Lemaire has broken the record for finding the 13th root of a 200-digit number. It's an incredibly hard calculation so how does the "human calculator" do it?

Fancy yourself as a bit of mental arithmetics buff, one of those who relishes totting up the bill after a restaurant meal for 12, one of those who looks down their nose at calculator users?

Well try this for size.

The task is to find the 13th root of 85,877,066,894,718,045,
602,549,144,850,158,599,202,771,247,748,960,878,023,151,
390,314,284,284,465,842,798,373,290,242,826,571,823,153,
045,030,300,932,591,615,405,929,429,773,640,895,967,991,
430,381,763,526,613,357,308,674,592,650,724,521,841,103,
664,923,661,204,223.

The answer's 2396232838850303. Multiply that by itself 13 times and you get the above. Even with a calculator you wouldn't beat Alexis Lemaire doing the calculation in his head.

Last week, at Oxford's Museum of the History of Science Lemaire broke his own record for the task, taking it down to 77.99 seconds. Mental athlete he may be, but he speaks of his hard work in much the same fashion as any other kind of athlete.

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Piece of cake..........................rrrrrrrrrrrright
 
Prolly works okay on women with really thick ankles and a lot of facial hair...
 
Or might as well get you laid instantly with a hot blond, provided that you know the 13th root of 200 digit number, you drive a ferrari and have a mansion by the sea shore. ;)
 
chcr said:
Prolly works okay on women with really thick ankles and a lot of facial hair...
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It would impress me and while my ankles aren't as skinny as some I certainly do NOT have lots of facial hair.
 
Have there been more times than just that one? If a baseball team loses 20 games in arow, then wins one, then after losing seven or eight more you dont' still say the team is "out of its funk" because it won one game out of 28 instead of zero out of 20.
 
Inkara1 said:
Have there been more times than just that one? If a baseball team loses 20 games in arow, then wins one, then after losing seven or eight more you dont' still say the team is "out of its funk" because it won one game out of 28 instead of zero out of 20.
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I would like to restate that I am "out of my funk"...no additional information will be provided at this time.
 
Inkara1 said:
We're going to find out who the lucky guy is eventually anyway.
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Maybe, or maybe it won't really go anywhere and he'll fall off the radar. I'm hoping it's not the later but it's early in the game...who knows.
 
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