| ||||
|---|---|---|---|---|
| Cardinal | seven hundred forty-three | |||
| Ordinal | 743rd (seven hundred forty-third) | |||
| Factorization | prime | |||
| Greek numeral | ΨΜΓ´ | |||
| Roman numeral | DCCXLIII | |||
| Binary | 10111001112 | |||
| Ternary | 10001123 | |||
| Senary | 32356 | |||
| Octal | 13478 | |||
| Duodecimal | 51B12 | |||
| Hexadecimal | 2E716 | |||
743 (seven hundred [and] forty three) is the natural number following 742 and preceding 744. It is a prime number.
743 is the 132nd prime number and a Sophie Germain prime, because 2 × 743 + 1 = 1487 is also prime.[1]
743 is an emirp, because 347 (the reversal of its digits) is prime.
There are exactly 743 independent sets in a four-dimensional (16 vertex) hypercube graph,[2] and exactly 743 connected cubic graphs with 16 vertices and girth four.[3]
References[edit]
- ^ Sloane, N. J. A. (ed.). "Sequence A005384 (Sophie Germain primes p: 2p+1 is also prime)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A027624 (Number of independent subsets of 2^n cube)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A006924 (Number of connected trivalent graphs with 2n nodes and girth exactly 4)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction