If you multiply together the number of fingers on every person's left-hands? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand) how long the number would be assuming 5 billion people on earth.

# 5 billion | 28 Jul 2009

0

It would only take one person to have no fingers on their left hand to make it zero as anything multiplied by 0 is 0.

0

0

**not**there in the rule - "only one answer per post."

Point 2 : Question is not clear, 5 fingers per person for only who have thumb or otherwise?

0

Quote:

Originally Posted byshabbirIf you multiply together the number of fingers on every person's left-hands? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand) how long the number would be assuming 5 billion people on earth.

We don't know if we have exceptions like someone without fingers on left hand etc ..

There can be a lot of cases like some 1 has 1 finger, 2 fingers, 3 fingers .. no fingers etc..

And, I don't think it's possible to consider all of them.

So.. i think the answer will be :

The length of the number is

= 5 billion * log(base 10) 5

= 5 * 10^9 * 0.69897000433601880478626110527551

= 3494850022 digits

0

Quote:

Originally Posted bymayjunenotthere in the rule - "only one answer per post."

Point 2 : Question is not clear, 5 fingers per person for only who have thumb or otherwise?

Many are close or I must say quite close but still no perfect answers.

0

Zero, because there is at least one person with a missing left hand.

0

Or if you just want the length of 5^5000000000, that's easy enough too, with a little help from logs and a calculator:

5^5000000000=10^(log(5^5000000000))

=10^(5000000000*log(5))

5000000000*log(5)=3494850021.680094023931305526377 5

so the length of 5^5e9 is 3494850022

0

0

'coz every1 answered 0, but shabbir needed the length.

Congratz xpi0t0s.