8 channel dvr with hard drive. S. Learn the different ways number 8 can be represented. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun. The square of any odd number, less one, is always a multiple of 8 (for example, 9 − 1 = 8, 25 − 1 = 8 × 3, 49 − 1… The infinity symbol ∞, described as a "sideways figure eight", is unrelated to the digit 8 in origin; it is first used (in the mathematical meaning "infinity") in the 17th century, and it may be derived from the Roman numeral for "one thousand" CIƆ, or alternatively from the final Greek letter, ω. military's Section 8 discharge for mentally unfit personnel. So that's why we've put together the top ten facts all about the number 8. Your guide to the number 8, an even composite number. In China, "8" is used in chat speak as a term for parting. The number 8 is generally considered to be an auspicious number by numerologists. It is composed of one prime number multiplied by itself two times. hrwr yl rvo zus6j jvg3z b0el yeu5m vmyx orzs6 29o7