Senior Sessions:
"Hailstone Numbers"

Tuesday, January 13
2:00 pm to 2:45 pm ET

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Take any positive integer and follow a few simple steps...  repeat.  You will get a wild sequence that jumps up and down — just like hailstones in a storm — until it mysteriously settles at 1.  But does every number eventually land there?  That’s the puzzle behind the Collatz Conjecture, an unsolved math mystery that’s stumped even the greatest minds.  Legendary Hungarian mathematician Paul Erdős once said, “Mathematics is not ready for such problems.”  Join us to experiment, explore, and perhaps even find your own path through this number riddle! 

Materials needed: paper and pencil

This is a live-streamed event.  Occasional video recordings are made available for a fee at videos.momath.org.

When
January 13th, 2026 from  2:00 pm to  2:45 pm
Location
MoMath Online
(Zoom link will be emailed after registration)
United States
Contact
Phone: (212) 542-0566
Event Fee(s)
Registration
Registration fee $15.00
Registration ($15) plus $15 donation to support participants in need $30.00
Discounted rate ($5) for MoMath members $5.00
Fee waived (for participants with financial need; max 1 session per participant) $0.00