by what number should 3 power-5 be multiplied to get product 2187
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we will assume the no. be x
3^-5 × x = 2187
3power -5 = 3 power 7
3^-5 × x = 3^7
x= 3^7 ÷ 3^-5
x = 3^7-(-5)
so, x = 3^7+5
x = 3^11
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