Modern smartphones often produce photos between 3 MB and 8 MB. A 15 MB image file is generally a high-resolution "Raw" file or a very large, high-quality JPEG used for professional printing.
A standard Word document is often less than 1 MB, meaning a 15 MB file would contain thousands of pages of text or a very long book with high-resolution images. (15.0 MB)
In genetics, "Mb" stands for (one million base pairs of DNA). Scientists use these measurements to locate specific gene clusters or mutations: Modern smartphones often produce photos between 3 MB