A million million millions.

1,000,000 x 1,000,000 x 1,000,000 = 1,000,000,000,000,000,000

Which is a 1 followed by 18 zeros

Using

We could also think of it as a

Examples:

• our Milky Way Galaxy is about a quintillion meters wide

• the volume of Earth's oceans is 1.35 quintillion cubic meters

• there are about 10 quintillion insects on Earth

The prefix "exa-" means a quintillion. Example: an exameter is a quintillion meters.

Below is a cube made of a million smaller cubes. If each of the small cubes is worth a trillion dollars, then the whole cube is worth a quintillion dollars.

1,000,000 x 1,000,000 x 1,000,000 = 1,000,000,000,000,000,000

Which is a 1 followed by 18 zeros

Using

**scientific notation**: 1 × 10^{18}We could also think of it as a

**million trillion**or a**billion billion**.Examples:

• our Milky Way Galaxy is about a quintillion meters wide

• the volume of Earth's oceans is 1.35 quintillion cubic meters

• there are about 10 quintillion insects on Earth

The prefix "exa-" means a quintillion. Example: an exameter is a quintillion meters.

Below is a cube made of a million smaller cubes. If each of the small cubes is worth a trillion dollars, then the whole cube is worth a quintillion dollars.

See: Million

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