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For ordinal numbers, when the numerals are preceded by the prefix tē (第), the colloquial set is used with the exception of numeral 1 and 2; when the numerals are preceded by the prefix thâu (頭), there is no exception to use the colloquial set when the number is smaller than 10, but once the number is greater than 10, the exception of ...
In Japanese, 八千, 8000, is used: 八千草 (lit. 8,000 herbs) means a variety of herbs and 八千代 (lit. 8,000 generations) means eternity. In Latin, sescenti was used to mean a very large number, perhaps from the size of a Roman cohort. [30] The modern word million derives from an Italian augmentative of the Latin word for thousand, mille ...
Every odd number greater than 5 can be expressed as the sum of three primes. (A prime may be used more than once in the same sum.) This conjecture is called "weak" because if Goldbach's strong conjecture (concerning sums of two primes) is proven, then this would also be true. For if every even number greater than 4 is the sum of two odd primes ...
A visualization of the surreal number tree. In mathematics, the surreal number system is a totally ordered proper class containing not only the real numbers but also infinite and infinitesimal numbers, respectively larger or smaller in absolute value than any positive real number.
The major system (also called the phonetic number system, phonetic mnemonic system, or Hérigone's mnemonic system) is a mnemonic technique used to help in memorizing numbers. The system works by converting numbers into consonants , then into words by adding vowels .
In number theory, a weird number is a natural number that is abundant but not semiperfect. [1] [2] In other words, the sum of the proper divisors (divisors including 1 but not itself) of the number is greater than the number, but no subset of those divisors sums to the number itself.
Lehmann [6] believes that the numbers greater than ten were constructed separately in the dialect groups and that *ḱm̥tóm originally meant "a large number" rather than specifically "one hundred." This table is transcluded from Indo-European vocabulary .
The conjecture was posed by Émile Lemoine in 1895, but was erroneously attributed by MathWorld to Hyman Levy who pondered it in the 1960s. [1]A similar conjecture by Sun in 2008 states that all odd integers greater than 3 can be represented as the sum of a prime number and the product of two consecutive positive integers ( p+x(x+1) ).