Question: what is a e in number?
Answer: Last modified March 22, 2009. Prism switches to scientific notation when the values are very larger or very small. For example: 2.3e-5, means 2.3 times ten to the minus five power, or 0.000023. 4.5e6 means 4.5 times ten to the sixth power, or 4500000 which is the same as 4,500,000.