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". One is neither prime or composite.

PEMDAS Operations


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

For example, $3+1=4$.


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

When one is subtracted by a number, it depends on what the number is.

For example: $1-2=-1$, $1-(-2)=3$


Any number multiplied by One equals the number.


Any number divided by one is that same number.


Any number to the power of 1 is that number.

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