4 ms·
The number of permutations is 52! which is 1x2x3...x51x52 So, at some point you're going to be multiplying by 10, 20, 30 etc. Plus you'll have 2x5x.., 4x50x...
by onraglanroad 2mo ago
The number of permutations is 52! which is 1x2x3...x51x52
So, at some point you're going to be multiplying by 10, 20, 30 etc. Plus you'll have 2x5x.., 4x50x... (if you rearrange the terms). It therefore makes sense that you'll end up with a bunch of zeros on the end.
- onraglanroad 2mo agoIn fact that means the largest factorial that doesn't end in 0 must be 4! because you could always move the ...x2x5 to the end of the series.