Definition

A number that is equal to one followed by twenty-four zeros, or 10 to the power of 24.

Example

In the United States, a septillion is a thousand raised to the power of eight.

Conversation

Did you know that a septillion is a huge number?

Yeah, it's mind-boggling to think about!

I read that it's equal to a one followed by twenty-four zeros.

That's insane! I can’t even imagine counting that high.

Synonyms & Antonyms

Root Explanation

**Septillion** → It is formed from "septem" (meaning seven) and the suffix "-illion" (used in large number names). The word "septillion" refers to the number represented by a one followed by twenty-four zeros, which is seven groups of three zeros beyond a million.

Memory Tip

Think of 'seven' ('septem') and remember that a 'septillion' is a huge number that has seven groups of three zeros.

Visually Confused Words