Answers to Math Exercises & Math Problems: Variations, Permutations, Combinations 
V_{3}(6) = 120 numbers, V_{2}(5) = 20 of them are divisible by five.
10^{3}×25^{4} = 390,625,000
3^{6} = 729
210
5! = 120
360
7
2×4! = 48
26^{6} = 308,915,776
28^{3}×10^{3} = 21,952,000
2×4! = 48
4!×7! = 120,960
359
2^{6}×6! = 46,080
108
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