Gambia is about 131 times smaller than Alaska.

Alaska is approximately 1,481,348 sq km, while Gambia is approximately 11,300 sq km, making Gambia 0.76% the size of Alaska. Meanwhile, the population of Alaska is ~710,231 people (1.7 million more people live in Gambia).
Tip: This to-scale comparison of Alaska vs. Gambia uses the Mercator projection, which distorts the size of regions near the poles.