* Series vs. individual paintings: Warhol produced multiple versions of his Marilyn Monroe silkscreen series, with variations in color, size, and composition.
* Variations within series: Within a series, there are often slight differences in the individual paintings, making it difficult to count them as distinct pieces.
* Lack of complete documentation: There's no single, publicly available record of every single painting Warhol made, especially those he may have kept private or destroyed.
However, we can give you some key numbers:
* The "Marilyn Diptych" series (1962): This is probably the most famous, consisting of 50 individual panels depicting Marilyn's face.
* Other Marilyn series: Warhol produced several other Marilyn series in the 1960s, each with multiple versions.
* Estimate: Some estimates suggest that Warhol created hundreds of Marilyn Monroe paintings throughout his career.
To get a more accurate idea of the number, you would need to consult Warhol archives and specialized resources.