What is 10 to the21st power?

Answer 1

1000000000000000000000

The easy way to do it is to just add the number of the power to 1(only for 10)

Example:

10 to the 2nd power = 100

you add two 0's to 1 because the power is 2.

1021 = 1,000,000,000,000,000,000,000 is called:

• a thousand trillion (or trilliard) when using the long scale (as used in Europe)
• a sextillion when using the short scale (as used in the United States)