What number comes next?
Look at the series (2, 3, 6, 21, 231), determine the pattern, and find the value of the next number!Correct answers: 56
The first user who solved this task is Slobodan Strelac.
#brainteasers #math
Refrigeration patentIn 1950, black American inventor F.M. Jones was issued a patent for a "System for Controlling Operation of Refrigeration Units" (No. 2,509,099). |