I was just wondering when you type some numbers into your computers calculator or into a website, how does it find the answer? Obviously for very small numbers like 4x12 it could do this just by addition. What about for massive calculations? For example 102!(adsbygoogle = window.adsbygoogle || []).push({});

I typed this into Wolfram Alpha and it gave the answer

961446671503512660926865558697259548455355905059659464369444714048531715130254590603314961882364451384985595980362059157503710042865532928000000000000000000000000

Which is the exact answer... How does to calculate what 88! * 89 is in the sequence? Then 89! * 90 etc. Each of these alone is an astronomically large number.

Thanks.

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# How do computers and websites work out huge numbers?

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