English Title

Extract of a letter from the father Mr. Euler to Mr. Bernoulli, concerning the Mémoire published among those of 1771

Authors

Leonhard Euler

Enestrom Number

461

Fuss Index

19

Original Language

French

Published as

Published letter

Published Date

1774

Written Date

1774

Content Summary

This is a very short note about properties of the numbers 10p, along with criteria for them to be divisible by 2p+1. It also contains a remark that 231–1 is prime and that 41–x+xx produces prime numbers for every integer value of x from 0 to 40.

Original Source Citation

Nouveaux Mémoires de l'académie des sciences de Berlin, Volume 1772, pp. 35-36.

Opera Omnia Citation

Series 1, Volume 3, pp.335-337.

Record Created

2018-09-25

Included in

Mathematics Commons

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