Pre-Algebra Examples

$210$

Step 1

Find the prime factorization of $210$ .

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Step 1.1

$210$ has factors of $2$ and $105$ .

$2 \cdot 105$

Step 1.2

$105$ has factors of $3$ and $35$ .

$2 \cdot 3 \cdot 35$

Step 1.3

$35$ has factors of $5$ and $7$ .

$2 \cdot 3 \cdot 5 \cdot 7$

Step 2

Since $210$ has factors other than $210$ and $1$ , $210$ is a composite number.

$210$ is a composite number

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