
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Consider that Karlanna places 420 marbles into $m$ boxes, with each box containing an equal number of marbles. There is more than one box, and each box must contain more than one marble and an even number of marbles. How many values of $m$ are possible?

Present the answer in LaTex format: \boxed{Your answer}
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