+**4e5** is a numerical representation using [scientific notation](/wiki/Scientific_Notation), expressing the value of four multiplied by ten to the power of five. This compact form simplifies the writing of the large number 400,000, clearly indicating its [magnitude](/wiki/Magnitude).
+## See also
+- [Exponent](/wiki/Exponent)
+- [Base](/wiki/Base)
+- [Number](/wiki/Number)
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