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The Number 1642: Properties and Meanings

Prime Factors of 1642=2x821.

1642 is a 275-gonal Number.

The maximal number of regions into which a plane can be divided by 41 circles=1642.


The Year 1642 AD

In the year 1642 AD Frenchman, Blaise Pascal invented an adding machine.

In the year 1642 AD Galileo dies at his villa in Florence, still under house arrest from charges of heresy.

In the year 1642 AD the fifth Dalai Lama took power in Tibet.

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