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<1679
Number Data-Base
Random Number
1681>
The Number 1680: Properties and Meanings
Prime Factors
of
1680
=
2
x
2
x
2
x
2
x
3
x
5
x
7
.
1680
is an
Octagonal Number
.
The Year 1680 AD
In the year
1680
AD Athanasius Kircher died.(
Esoteric History
)
<1679
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Random Number
1681>
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