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How old is a Marlin lever action 38-w rifle with the serial 21171 and is there a value range?

  Answer     the serial number 21171 would be from late 1888, the 38W stands for 38winchester also known as a 38-40 caliber. this gun will be either a late model (MORE)

Is 20449 a prime number?

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. 20449 is composite.
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What is 22763 rounded to?

To the nearest ten, 22760   To the nearest hundred, 22800   To the nearest thousand, 23000   To the nearest ten thousand, 20000
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