What is the estimated main-sequence lifespan range for the least massive true stars (around 7.5% to 8% the mass of the Sun)?

Answer

20 trillion years to 380 trillion years

The very lightest true stars possess the absolute upper limit on stellar longevity, with estimates placing their main-sequence lives between a minimum of 20 trillion years and a maximum of around 380 trillion years.

What is the estimated main-sequence lifespan range for the least massive true stars (around 7.5% to 8% the mass of the Sun)?
astronomyLongevitystarlife