Online registration is closed for this event. If available, tickets on the day of the event may incur an additional charge.

Senior Sessions:
"Hailstone Numbers"

Friday, March 18
2:00 pm to 2:45 pm ET (New York)

Hail is formed when ice repeatedly travels up and down within a cloud, growing and shrinking until its mass is steady enough to fall to the ground as hail.  Hailstone numbers are repeated patterns of numbers with the same property.  They increase and decrease sporadically according to a set rule until they finally plummet in size and eventually become the number 1.  These number sequences are easy to create but often impossible to fully understand.  Come learn what these numbers are, why they are so mystifying, and how they might just represent the next big breakthrough in mathematics.  For senior citizens / mature adults.

Materials needed: paper and pencil

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

March 18, 2022 2:00 pm   through   2:45 pm
MoMath Online
United States
Phone: 212-542-0566
Event Fee(s)
Reduced rate (while supplies last) $ 5.00
Donation to support families in need $ 15.00
Free for families with financial need $ 0.00

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