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The Number 1691: Properties and Meanings
Prime Factors of 1691=19x89.1691 Oort is a main-belt asteroid discovered by Ingrid van Houten-Groeneveld and Karl Wilhelm Reinmuth at Heidelberg. It was named after the Dutch astronomer Jan Oort.
Aeroflot Flight 1691 crashed after a false fire warning near Moscow Vnukovo Airport.
The Year 1691 AD
In the year 1691 AD a fire at the Palace of Whitehall in London destroyed its Stone Gallery.In the year 1691 AD Michel Rolle invented Rolle's theorem, an essential theorem of mathematics.
The Main Number Sections:
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0 - 500 | 501 - 1000 | 1001 - 1500 | 1501 - 2000 | 2001 - 2500
Number Articles | Higher Numbers | Random Number