Number theory

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Number theory is the branch of mathematics concerned with the properties of the natural numbers 1, 2, 3, 4, and so on. Number theory also deals with a type of natural numbers called prime numbers. A prime number, such as 2, 5, or 71, is a natural number that can be divided without a remainder only by itself and 1.

Septillion

Septillion, in the United States and France, is a number followed by 24 zeros. One septillion is written 1,000,000,000,000,000,000,000,000. In… See more »

Power

Power, in arithmetic, is the product of a number multiplied by itself a specified number of times. For example, 3 X 3 X 3 X 3 X 3 is called the… See more »

Nonillion

Nonillion, noh NIHL yuhn. In the United States and France, nonillion is a thousand octillions, or a unit with 30 zeros. In England, it is a unit… See more »

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Number theory

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