The book is now available! 89
(just those submitted by Homewood)
Prime Curios!
Curios: Curios Search:


Just showing those entries submitted by 'Homewood': (Click here to show all)

Photo credit: Marsha Greer
+ Y-89 is the only naturally occurring stable isotope of Yttrium. [Homewood]

+ There are 89 three-digit isolated (i.e., not part of a twin prime pair) prime numbers. [Homewood]

+ If A = 1, B = 6, C = 1, D = 8, ... , (using the digits of the Golden Ratio), then 'MERSENNE PRIME NUMBER' = 89; a Mersenne prime exponent that Mersenne himself missed! [Homewood]

(There is one curio for this number that has not yet been approved by an editor.)

Prime Curios! © 2000-2018 (all rights reserved)  privacy statement