Problem 60661. The Prime Days of Christmas

• Created by Christian Schröder
• Appears in Guess the Logic!

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On the first day of Christmas my true love sent to me partridges in a pear tree.

On the second day of Christmas my true love sent to me turtle doves, and partridges in a pear tree.

On the third day of Christmas my true love sent to me French hens, turtle doves, and partridges in a pear tree.

On the fourth day of Christmas my true love sent to me calling birds, French hens, turtle doves, and partridges in a pear tree.

On the fifth day of Christmas my true love sent to me golden rings, calling birds, French hens, turtle doves, and partridges in a pear tree.

And so on ...

denotes the i-th prime. Suppose that there are n days of Christmas. How many gifts am I receiving in total?

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Solution Stats

34.88% Correct | 65.12% Incorrect

• 43 Solutions
• 15 Solvers

Last Solution submitted on Feb 22, 2025

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