Las Vegas is 2.6 times larger than Long Beach, California.
Area: 363 km2 calculated
Las Vegas, officially the City of Las Vegas and often known as simply Vegas, is the most populous city in the state of Nevada and the county seat of Clark County. Wikipedia
Area: 140 km2 calculated
Long Beach is a city in Los Angeles County in Southern California, on the Pacific coast of the United States. The city is the 36th-largest city in the United States and the seventh-largest in California. As of 2010, its population was 462,257. Wikipedia