Sudan is about 6 times bigger than New Mexico.

New Mexico is approximately 314,310 sq km, while Sudan is approximately 1,861,484 sq km, making Sudan 492% larger than New Mexico. Meanwhile, the population of New Mexico is ~2.1 million people (45.9 million more people live in Sudan).
Tip: This to-scale comparison of New Mexico vs. Sudan uses the Mercator projection, which distorts the size of regions near the poles.