Question 472861
the little lotto asks to select five numbers from the numbers one through 45. how many different sets of five numbers can you select??
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The 1st number is 1 of 45, then 44, etc (there are no duplicates)
--> 45*44*43*42*41 = 146611080
But the order doesn't matter, so it's divided by 5*4*3*2*1
--> 1221759 combinations