Big Number Guides

Practical explanations of large numbers and how to calculate with them exactly.

• Names of Large Numbers in Order: Million to Vigintillion

  A complete list of large number names in order, from million, billion and trillion to decillion, quattuordecillion and vigintillion, with zeros and powers of ten.

• What Is a Big Number? Examples of Large Numbers in Daily Life and Maths

  What counts as a big number in maths, examples of large numbers in daily life, how to find the bigger number, and why there is no largest number.

• How to Use a Large Number Calculator: Factorials, Hex, Scientific Notation and 1000-Digit Math

  A practical guide to calculating with very large numbers online: 1000-digit arithmetic, factorials, hex and other bases, scientific notation, commas and readable results.