No need to feel embarrassed.
a prime number is a whole number (integer) whose only factors are iself & 1.
examples:
5 is a prime number its only factors are 5*1
6 is not a prime number, it is 1*2*3
7 is prime, it is just 7*1
8 is not prime, it is 2*2*2*1 or 2^3*1
I hope this helps.
2007-02-20 16:59:38
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answer #1
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answered by yupchagee 7
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a prime number is an integer different than zero that can be only divided by 1 and itself
the first prime numbers are:1 2 3 5 7 11 13..
2007-02-21 01:04:01
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answer #2
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answered by abd 5
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A prime number is a number that has as its factors 1 and the number itself. These factors are unique, which means they must be different. So 1 is not a prime number, because its factors are 1times1 and these are the same. They are NOT unique. 2 is the only even prime number. All the other prime numbers are odd, but not all odd numbers are prime. 3 is prime, but 15 is not because besides 1 times 15 you can also have 3 times 5. The numbers which are not prime are called composite numbers. One is neither prime nor composite.
2007-02-21 02:02:01
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answer #3
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answered by lizzie 3
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A number that is only divisible by itself and 1.
For example: 1, 2, 3, 5, 7, 11, 13, 17...
2007-02-21 00:38:27
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answer #4
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answered by kardak123 2
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A number that is evenly divisible by only itself, and one.
Seven, for example. If you divide 7 by anything other than 1 or 7, you won't get a whole number as a result.
2007-02-21 00:36:48
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answer #5
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answered by extton 5
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Actually, a prime number is a positive integer that cannot be devided by any integer between 1 and itself (not including 1 and itself).
2007-02-21 00:42:52
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answer #6
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answered by etgdn l 2
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A prime number is a positive integer other than one, that is only evenly divisible by two positive integers--itself and one.
2007-02-21 01:14:04
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answer #7
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answered by Northstar 7
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a number that can only be divided by itself and one.
2007-02-21 00:35:15
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answer #8
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answered by thepinkpipster 3
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