286 (number)

286 is the natural number following 285 and preceding 287.

In mathematics

• 286 is an even composite number with 3 prime factors.
• 286 is in the smallest pair of nontotient anagrams with 268.
• 286 is a tetrahedral number which means that represents a tetrahedron.
• 286 is a sphenic number which means that it has exactly 3 prime factors.
• 286 the first even pseudoprime to base 3.

References