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The positive integer one or 1 is smallest positive integer that is greater than zero. It is commonly shown using the Arabic numeral, 1. 

==PEMDAS Operations==

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

For example, <math>3+1=4</math>.

===Subtraction===
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: <math>1-2=-1</math>, <math>1-(-2)=3</math>

===Multiplication===
Any number multiplied by One 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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