
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
According to the long-term plan of Wuhan Metro Rail Transit in 2035, the total mileage of Wuhan Metro will reach 1,300,000 meters, taking an absolute leading position in the middle and lower reaches of the Yangtze River. Express 1,300,000 in scientific notation is ______.

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