摘要
All groups in this paper are finite. A group G is said to be factorizable if it has two proper subgroups A and B such that G=AB. Current research on factorizable groups is vigorous. At first, we should like to mention some notations. If G is a group, S（G） denotes the largest normal solvable subgroup of G, Gp and Gp’ denote respectively the Sylow
