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It is a prime number. 17 was described at MIT as "the least random number", according to the Jargon File. [1] This is supposedly because, in a study where respondents were asked to choose a random number from 1 to 20, 17 was the most common choice. This study has been repeated a number of times. [2]
So think of the next number after 14 that ends with 1, which is 21. After coming to the top of this column, start with the bottom of the next column, and travel in the same direction. The number is 8. So think of the next number after 21 that ends with 8, which is 28. Proceed in the same way until the last number, 3, corresponding to 63.
"A base is a natural number B whose powers (B multiplied by itself some number of times) are specially designated within a numerical system." [1]: 38 The term is not equivalent to radix, as it applies to all numerical notation systems (not just positional ones with a radix) and most systems of spoken numbers. [1]
Any number multiplied by 0 is 0. This is known as the zero property of multiplication: [27] = Negation −1 times any number is equal to the additive inverse of that number: = (), where () + = −1 times −1 is 1:
The name of a number 10 3n+3, where n is greater than or equal to 1000, is formed by concatenating the names of the numbers of the form 10 3m+3, where m represents each group of comma-separated digits of n, with each but the last "-illion" trimmed to "-illi-", or, in the case of m = 0, either "-nilli-" or "-nillion". [17]
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A circular prime number is a number that remains prime on any cyclic rotation of its digits (in base 10). 2, 3, ... 17 p − 1 ≡ 1 (mod p 2): 2, 3, 46021, ...
Thus, a measurement of time such as 3:23:17 (3 hours, 23 minutes, and 17 seconds) can be interpreted as a whole sexagesimal number (no sexagesimal point), meaning 3 × 60 2 + 23 × 60 1 + 17 × 60 0 seconds. However, each of the three sexagesimal digits in this number (3, 23, and 17) is written using the decimal system.