Which archipelago has the largest group of coral atolls in the world?

The Tuamotu Archipelago, located in French Polynesia, is the largest group of coral atolls in the world.1

Spanning more than 900 miles (1,450 km) across the central South Pacific Ocean, the archipelago consists of 75 atolls, one raised coral atoll, and numerous coral reefs. These low, flat islands are primarily of coral origin and surround lagoons that support local industries such as fishing and the cultivation of black pearls.12