<1641 | Number Data-BaseRandom Number |
1643> |

## 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.

<1641 | Number Data-BaseRandom Number |
1643> |

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