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A pronic number is a number that is the product of two consecutive integers, that is, a number of the form (+). [1] The study of these numbers dates back to Aristotle.They are also called oblong numbers, heteromecic numbers, [2] or rectangular numbers; [3] however, the term "rectangular number" has also been applied to the composite numbers.
A graded numerical sequence or numerical proverb, sometimes [where?] called an n/n+1 saying or numerical heightening, is a literary form employed in the Hebrew Bible.It is found especially in Proverbs, Job, and Amos, and is used to list attributes, compare items, and catalogue sins. 38 biblical examples have been identified, [1] as well as in the Book of Sirach.
A number n that has more divisors than any x < n is a highly composite number (though the first two such numbers are 1 and 2). Composite numbers have also been called "rectangular numbers", but that name can also refer to the pronic numbers, numbers that are the product of two consecutive integers.
A number that has the same number of digits as the number of digits in its prime factorization, including exponents but excluding exponents equal to 1. A046758: Extravagant numbers: 4, 6, 8, 9, 12, 18, 20, 22, 24, 26, 28, 30, 33, 34, 36, 38, ... A number that has fewer digits than the number of digits in its prime factorization (including ...
If the conjecture is true, then the gap size would be on the order of <. This also means there would be at least two primes between x 2 and (x + 1) 2 (one in the range from x 2 to x(x + 1) and the second in the range from x(x + 1) to (x + 1) 2), strengthening Legendre's conjecture that there is at least one prime in this range.
MS. Kennicott 3, created in 1299. Shows the beginning of Numbers with its first word illustrated with calligraphy: וידבר Way-ḏabbêr, "And He spoke…" Most commentators divide Numbers into three sections based on locale (Mount Sinai, Kadesh-Barnea and the plains of Moab), linked by two travel sections; [7] an alternative is to see it as structured around the two generations of ...
The Biblia pauperum (Latin for "Paupers' Bible") was a tradition of picture Bibles beginning probably with Ansgar, and a common printed block-book in the later Middle Ages to visualize the typological correspondences between the Old and New Testaments. Unlike a simple "illustrated Bible", where the pictures are subordinated to the text, these ...
30 is a square pyramidal number. 30 is an even , composite , pronic number . With 2 , 3 , and 5 as its prime factors , it is a regular number and the first sphenic number , the smallest of the form 2 × 3 × r {\displaystyle 2\times 3\times r} , where r is a prime greater than 3.