Instead, consider (11*7*13)^2003 *7*169. The last digit of 11*7*13 is 1, so the last digit of the total product is 7*9 mod 10=3.
Er, I guess I didn't see Oskar's solution there.
Edited on September 7, 2004, 11:43 pm
blackjack
<a href="http://c.casalemedia.com/c?s=51816&f=3&id=0" target="_blank"><img src="http://as.casalemedia.com/s?s=51816&u=http://perplexus.info&f=3&id=0&if=0" width="120" height="600" border="0"></a>
flooble's webmaster puzzle
Simpler yet!
