Hey all(adsbygoogle = window.adsbygoogle || []).push({});

Just thought I would share something I observed:

[tex] 2 \sqrt[3]{8} = \sqrt[3]{64}[/tex]

Or [tex] 2 \sqrt[5]{10} = \sqrt[5]{320} [/tex]

[tex] 2^{5} \times 10 = 320 \rightarrow \sqrt[5]{320} [/tex]

You raise the number outside to the power, and then multiply by the inside number.

Has this already been known?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Neat Number Trick

**Physics Forums | Science Articles, Homework Help, Discussion**