One

The positive integer one, or 1 is smallest positive integer that is greater than zero. It is commonly shown using the Arabic numeral, 1. In Roman numerals, it is shown as an uppercase "I". 1 is neither prime or composite.

PEMDAS Operations

Addition

When a number is added to 1, the number is increased by one.

For example, .

Subtraction

When a number is subtracted by one, the number is decreased by one. Examples: 2-1=1, 4-1=3

Multiplication

Any number multiplied by 1 equals the number.

Division

Any number divided by one is that same number.

Exponents

Any number to the power of 1 is that number.

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