89
This number is a prime.
Just showing those entries submitted by 'Beedassy': (Click here to show all)
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| Photo credit: Marsha Greer |
89 is the largest Fibonacci number occurring in natural
floral arrangements as the most common number of petals of
the Michaelmas daisy (asteraceae family). [Beedassy]
89 is the atomic number of Actinium, the first in the list
of chemical elements alphabetically ordered. Note the
appropriate use of the phrase "atomic number" which
literally means "number that cannot be split." [Beedassy]
The smallest prime p such that the number
"pp" has a square of the form "XXYY":
89892 = 80802121. [Beedassy]
Diaethria neglecta is a Latin American butterfly with a prime number (89) on its underside hindwing. [Beedassy]
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