
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
A chemical plant has three types of solutions, which are $4200$ mL, $3220$ mL, and $2520$ mL, respectively. Now, they need to be filled into small bottles, with each bottle containing the same volume of liquid. The question is: To ensure all solutions are exactly filled into the bottles and the number of bottles used is minimized, what should be the volume of each small bottle in milliliters?

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