What are two reasons why US president Dwight Eisenhower provided full support to the leader Ngo Dinh Diem in South Vietnam

31 is prime. and it’s prime factorization is just 31.

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)