9 x 10^5 is 1.8*10^2 larger than 5 x 10^3.
The exponent of a number shows how many times the number is multiplied by itself. For example, 2×2×2×2 can be written as 24, as 2 is multiplied by itself 4 times. Here, 2 is called the "base" and 4 is called the "exponent" or "power."
Given number:
9 * 10^5 / 5 * 10^3
=9/5 * 10^( 5-3)
= 1.8*10^2
Hence, 9 x 10^5 is 1.8*10^2 larger than 5 x 10^3.
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