8191 Marsenne

This minor planet is named after Marin Marsenne (1588 - 1648), a French polymath who was known for his contributions to mathematics and theology. He is most notable for coming up with the formula for the Marsenne prime numbers, which can be described by the formula Mn = 2n − 1.

Interestingly, the name for this minor planet was chosen because the number 8191 is the fifth Marsenne prime. The list of Marsenne primes with minor planets numbered after them include:

The symbol for this minor planet is a representation of the Marsenne formula, like the symbols for 24680 Alleven and 13579 Allodd. It is a tall number 2 on the left with a small n in the upper right, a short minus sign inside the n, and an asteroidal star below it.

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