Search results
Results From The WOW.Com Content Network
7 is the only number D for which the equation 2 n − D = x 2 has more than two solutions for n and x natural. In particular, the equation 2 n − 7 = x 2 is known as the Ramanujan–Nagell equation. 7 is one of seven numbers in the positive definite quadratic integer matrix representative of all odd numbers: {1, 3, 5, 7, 11, 15, 33}. [19] [20]
Number theory is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic functions.German mathematician Carl Friedrich Gauss (1777–1855) said, "Mathematics is the queen of the sciences—and number theory is the queen of mathematics."
5 A: Resembles an upside-down V. Also said to equal 500. 6 ↅ Either from a ligature of VI, or from digamma (ϛ), the Greek numeral 6 (sometimes conflated with the στ ligature). [48] 7 S, Z: Presumed abbreviation of septem, Latin for 7. 9.5 X̷: Scribal abbreviation, an x with a slash through it. Likewise, IX̷ represented 8.5 11 O
5 cm is an Indonesian drama film, directed by Rizal Mantovani and starring Herjunot Ali and Fedi Nuril. It is based on the novel 5 cm by Donny Dhirgantoro, and was released on December 12, 2012. Soundtrack album