5000 = 5 x 1000
& 1000 = 10 x 10 x 10 = 2^3 x 5^3
Hence in exp in exponential form 5^(1) x 2^3 x 5^3
Remember for exponents, when multiplying with a common coefficient, you add the exponents(indices)
Hence
2^3 x 5^(1 + 3) = 2^3 x 5^4
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