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A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 645 is composite.

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โˆ™ 2013-04-22 01:46:20
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Q: Is 645 a prime number
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Related questions

Is 645 prime or composite?

It is composite.


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645 rounded to the nearest hundred is 600.


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645 is a 3-digit number. A single digit in a number can have a place value. A number with several digits cannot.


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An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 645 is an odd number.


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The Prime Minister of the United Kingdom comes from the party with the majority members of parliament. The parliament has 645 members.


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