* One dollar equals 100 pennies.

* One million dollars equals 1,000,000 dollars.

To find the number of pennies in one million dollars, multiply the number of dollars by the number of pennies per dollar:

1,000,000 dollars * 100 pennies/dollar = 100,000,000 pennies

In scientific notation, 100,000,000 is written as 1 x 10⁸

Therefore, one million dollars is equal to 1 x 10⁸ pennies.