The exponent of 15 in 100!
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For ex- [2.5] = 2
[2.1] = 2
[2.9999…..] = 2
[-2.35] = -3
[0.12548…] = 0 and so on
So here [100/3] + [100/9] + [100/27] + [100/81] + [100/243] + …
= 33 + 11 + 3 + 1 + 0 + 0 + …
= 48
[2.1] = 2
[2.9999…..] = 2
[-2.35] = -3
[0.12548…] = 0 and so on
So here [100/3] + [100/9] + [100/27] + [100/81] + [100/243] + …
= 33 + 11 + 3 + 1 + 0 + 0 + …
= 48
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