The Number 15: Properties and MeaningsPrime Factors of 15=3x5.
15 is a Triangular Number.
15 is a Rhombic Dodecahedral Number.
15 is a Hexagonal Number.
15 is the smallest composite number n with the property that there is only one group of order n.
15 is a Bell Number.
There are exactly 15 supersingular primes: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 41, 47, 59, and 71. The supersingular primes are exactly the set of primes that divide the group order of the Monster group.Top of Form 1
The Chemical Element Phosphorus has an atomic number of 15.
The following are the Virtues and activities of noble people:-- (l) fearing social censure; (2) helping those in distress; (3) gratitude; (4) respecting others and not disturbing their prayers and other spiritual activities; (5) discarding calumniation; (6) praising patience in adversity; (7) humbleness in prosperity; (8) speaking sweetly and agreeably to friends according to necessity; (9) abiding by one's word; (l0) over-coming impediments; (ll) planned expenditure; (12) insistence on doing noble things; (13) discarding improper actions; (14) discarding such evils as excessive sleep, sensual delights, passions and scandal-mongering; (15) caring for propriety etc. If you keep admiring such virtues you will acquire them. There effect will fall upon your mind. Your life must be brightened by these thirty five essential marganusari Virtues because afterwards if a person proceeds further and becomes a sadhu and if even after that the breaks anyone of these thirty five Virtues he will fall from the lofty level to a low level.
15 Eunomia is a very large asteroid in the inner main asteroid belt.
Film: 15 Minutes.