Prime number dates

5 posts
I just saw a friend's collection of coins with dates that are prime numbers. I thought it was a clever idea. Here's a site that shows the primes between 1901 and 2000 plus links for other ranges.
https://www.easycalculation.com/prime-number-chart-1901-2000.html
That's a pretty good idea.
are you suggesting a challenge?
I have an idea about a set i might be able to assemble... I'll give it a look tomorrow.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
If I have that right, then your friend only collects coins from
1901, 1907, 1913, 1931, 1933, 1949, 1951, 1973, 1979, 1987, 1993, 1997, 1999 and other prime number years?

Interesting theme.
I could do it in one day!

US pennies, all culled from circulation.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
Nicely done!

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