Probability Question

[La Brujita]

I am trying to understand how twodimes.net calculates its heads up hold'em percentages. It lists 1,712,304 enumerations for a hold'em heads up pre flop calculation.

I figure the number of all enumerations for heads up is 48*47*46*45*44 which is much larger than 1,712,304.

Is there some way the computer cuts it down. One thought I have is when flushes are not relevant cards of same rank but different suit are treated equally. If the math is complicated please just confirm my hunch is correct.

Thanks.

[doormat]

If the order in which the cards come up on the board is unimportant, you divide your calculation by 1*2*3*4*5 and arrive at their number.

doormat

[La Brujita]

Doormat,

Thanks for the post. In retrospect the answer was so simple I am embarrased I asked the question. Off topic-does anyone else notice how much worse the math skills have gotten the farther away from high school/college one gets.