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## Divisibility

You can divide 6 into equal parts of 1, 2, 3, or 6 (but not 4 or 5) because 6 is divisible by these numbers. The rules of divisibility have wide-ranging applications as an easy test for divisibility.

# Even and Odd Numbers

$\large \text{Is } 0 \text{ even or odd?}$

What is true of all even numbers?

Given an integer $$k$$, which of these integers might be odd?

What is the $$28 ^{\mbox{th}}$$ smallest positive odd number?

What is true of all odd numbers?

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