Math is hard, someone once gave me my member number, but I ant find the post, and math is hard! INGO owes it to me to do this(math)!Go to the member list and click on "join date". (Circled in red)
Then find your name. Helps to know your own join date ahead of time.
Once you find your name, look towards the bottom left. In very light grey numbers are the member numbers for that page. Do your math or counting and that gives you your member number.
It's hard to see but the number is there.