My age is a product of (exactly) two prime numbers. Also, the same was true before my last birthday and will be true after my upcoming birthday.
How old am I?
(You can assume that my age is within a reasonable human lifespan, measured in years. This gives more than one possible age. Find all of them.)
See also version 2: https://brilliant.org/discussions/thread/semi-prime-age-version-2/