Abstract
We show that apart from A6 all non-abelian finite simple groups with no elements of order 6 are characterized by their element orders.
*Project supported by the National Natural Science Foundation of China and the State Education Ministry Foundation of China.
*Project supported by the National Natural Science Foundation of China and the State Education Ministry Foundation of China.
Notes
*Project supported by the National Natural Science Foundation of China and the State Education Ministry Foundation of China.