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Natural numbers Natural numbers and their representation [Home] [Search] [Forum] [Links] [Contact] [Imprint] [Sitemap] [German] [English] |
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Definition natural numbers: The
amount of natural numbers is indicated with
a) even numbers b) uneven numbers c) indivisible/prime numbers The even numbers are numbers that can be divided by 2 {2,4,6,8,10, …100, 102, 104…}. Uneven numbers (the rest) are those numbers that can not be divided by 2 {1,3,5,7,9,11,13, …101,103,105}. There are numbers under the uneven numbers that can only be divided by themselves or by 1. These are called indivisible numbers or prime numbers (2 also belongs to prime numbers) {2, 3, 5, 7,11,13,17, 19, 23, 29, 31, …}. Another special case are the square numbers. Square numbers are the results that come out when a number is multiplied by itself. For example: 72 =49, spoken: 7 to the power of 2, 7 squared
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