Definition of Perfect number. Meaning of Perfect number. Synonyms of Perfect number

Here you will find one or more explanations in English for the word Perfect number. Also in the bottom left of the page several parts of wikipedia pages related to the word Perfect number and, of course, Perfect number synonyms and on the right images related to the word Perfect number.

Definition of Perfect number

Perfect number
Perfect Per"fect, a. [OE. parfit, OF. parfit, parfet, parfait, F. parfait, L. perfectus, p. p. of perficere to carry to the end, to perform, finish, perfect; per (see Per-) + facere to make, do. See Fact.] 1. Brought to consummation or completeness; completed; not defective nor redundant; having all the properties or qualities requisite to its nature and kind; without flaw, fault, or blemish; without error; mature; whole; pure; sound; right; correct. My strength is made perfect in weakness. --2 Cor. xii. 9. Three glorious suns, each one a perfect sun. --Shak. I fear I am not in my perfect mind. --Shak. O most entire perfect sacrifice! --Keble. God made thee perfect, not immutable. --Milton. 2. Well informed; certain; sure. I am perfect that the Pannonains are now in arms. --Shak. 3. (Bot.) Hermaphrodite; having both stamens and pistils; -- said of flower. Perfect cadence (Mus.), a complete and satisfactory close in harmony, as upon the tonic preceded by the dominant. Perfect chord (Mus.), a concord or union of sounds which is perfectly coalescent and agreeable to the ear, as the unison, octave, fifth, and fourth; a perfect consonance; a common chord in its original position of keynote, third, fifth, and octave. Perfect number (Arith.), a number equal to the sum of all its divisors; as, 28, whose aliquot parts, or divisors, are 14, 7, 4, 2, 1. See Abundant number, under Abundant. --Brande & C. Perfect tense (Gram.), a tense which expresses an act or state completed.

Meaning of Perfect number from wikipedia

- In number theory, a perfect number is a positive integer that is equal to the sum of its positive proper divisors, that is, divisors excluding the number...
- perfect number (also called multiperfect number or pluperfect number) is a generalization of a perfect number. For a given natural number k, a number...
- mathematics, an almost perfect number (sometimes also called slightly defective or least deficient number) is a natural number n such that the sum of...
- Are there infinitely many unitary perfect numbers? More unsolved problems in mathematics A unitary perfect number is an integer which is the sum of its...
- Perfect Number (Korean: 용의자X; RR: Yonguija X; lit. Suspect X) is a 2012 South Korean mystery-drama film directed by Bang Eun-jin. Adapted from Keigo Higashino's...
- include quintuplets, quadruplets, and triplets). 90 is the third unitary perfect number (after 6 and 60), since it is the sum of its unitary divisors excluding...
- 6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number. A six-sided polygon is a hexagon,...
- In number theory, a perfect totient number is an integer that is equal to the sum of its iterated totients. That is, one applies the totient function...
- Higashino, which had earlier been made into the 2012 South Korean film Perfect Number by Bang Eun-jin. The film is produced under the banner 12th Street Entertainment...
- symmetry. A cube number, or a perfect cube, or sometimes just a cube, is a number which is the cube of an integer. The non-negative perfect cubes up to 603...