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The oldest known multiplication tables were used by the Babylonians about 4000 years ago. [2] However, they used a base of 60. [2] The oldest known tables using a base of 10 are the Chinese decimal multiplication table on bamboo strips dating to about 305 BC, during China's Warring States period. [2] "Table of Pythagoras" on Napier's bones [3]
An economical number has been defined as a frugal number, but also as a number that is either frugal or equidigital. gcd( m , n ) ( greatest common divisor of m and n ) is the product of all prime factors which are both in m and n (with the smallest multiplicity for m and n ).
A different computation found that there are 18,435,599,767,349,200,867,866 primes (roughly 2 × 10 22) smaller than 10 24, if the Riemann hypothesis is true. [ 4 ] Lists of primes by type
The tables below list all of the divisors of the numbers 1 to 1000. A divisor of an integer n is an integer m , for which n / m is again an integer (which is necessarily also a divisor of n ). For example, 3 is a divisor of 21, since 21/7 = 3 (and therefore 7 is also a divisor of 21).
102 is the first three-digit base 10 polydivisible number, since 1 is divisible by 1, 10 is divisible by 2 and 102 is divisible by 3. This also shows that 102 is a Harshad number. 102 is the first 3-digit number divisible by the numbers 3, 6, 17, 34 and 51. 102 64 + 1 is a prime number. There are 102 vertices in the Biggs–Smith graph.
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President-elect Trump announced two new foreign ambassadors on Tuesday in a Truth Social post. “It is my great honor to announce that John Arrigo will serve as the next United States Ambassador ...
The apartment number of Neo in The Matrix; Vault 101 is the starting area of the 2008 action role-playing game Fallout 3; The Wonderful 101, an action-adventure game for the Wii U; Produce 101, a Korean reality girl group survival show; TV show Zoey 101; The house number of Samson en Gert in the eponymous Belgian kids' television show.