How many counting numbers less than 100000 have only even digits?

Hi Guest!

You're really close, but the first digit only has 4 options since it can't be 0. 

4*5*5*5*5 = 2500

=^._.^=

Edit:

I've made a dumb error... >:(((

So I forgot that numbers exist that aren't 5 digit.-.-

So please ignore that previous response. 

As for why the 2 guests have gotten different answers is because 0 is also counted using the method: 5^5 = 3125, so you just have to subtract 1. 

Nice job to our guests for solving the problem... I'm quite sad that I've made such a dumb mistake. 

=^._.^=