Definition:Multiply Perfect Number/Historical Note
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Historical Note on Multiply Perfect Number
Marin Mersenne was the first to discover the smallest triperfect number $120$.
He suggested to René Descartes that it would be an interesting exercise to hunt down further examples of multiply perfect numbers.
They were actively investigated between $1631$ and $1647$ by Mersenne, Pierre de Fermat, André Jumeau, Bernard Frénicle de Bessy and Descartes.
Many new ones have been found since.
Sources
- 1919: Leonard Eugene Dickson: History of the Theory of Numbers: Volume $\text { I }$ ... (previous) ... (next): Preface