285
287
The Number 286: Properties and Meanings
Prime Factors of 286=2x11x13.
286 is a Heptagonal Number.
286 is a 49-gonal Number.
286 is a Centered 19-gonal Number.
286 is a Centered 47-gonal Number.
286 is a Tetrahedral Number.
The Year 286 AD
In the year 286 AD: the first year of the reign of Fiacha Sraibhtine over Ireland.
285
287