207 (two hundred [and] seven) is the natural number following 206 and preceding 208. It is an odd composite number with a prime factorization of .
In Mathematics
- 207 is a Wedderburn-Etherington number.[1]
- There are exactly 207 different matchstick graphs with eight edges.[2][3]
- 207 is a deficient number, as 207's proper divisors (divisors not including the number itself) only add up to 105: .
See also
References
- ^ Sloane, N. J. A. (ed.). "Sequence A001190 (Wedderburn-Etherington numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A066951 (Number of nonisomorphic connected graphs that can be drawn in the plane using n unit-length edges)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Salvia, Raffaele (2013). "A catalog for matchstick graphs". arXiv:1303.5965 [math.CO].