1954

This number is a composite.

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The earliest known reference to "Prime Curios" comes from a rare book titled "NUMBERS: FUN & FACTS" by J. Newton Friend (Charles Scribner's Sons: New York, 1954). '54 on page 45 to be exact!

Submitted: 2003-01-19 11:51:33;   Last Modified: 2020-06-23 12:23:43.
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