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<1679 Number Data-Base
Random Number 		1681>

The Number 1680: Properties and Meanings

Prime Factors of 1680=2x2x2x2x3x5x7.

1680 is an Octagonal Number.


The Year 1680 AD

In the year 1680 AD Athanasius Kircher died.(Esoteric History)

<1679 Number Data-Base
Random Number 		1681>
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