Question

A composite number is a number that has two or more prime factors. The number 87 can be expressed as the sum of two composite numbers in many ways. What is the minimum positive difference between two such numbers?

Answer 1

86+ 1no
85 + 2 no
84 + 3no
83 + 4 no
82 + 5 no
81 + 6 = 3*3*3*3 + 6*2
and diff = 5

Answer 2

42+ 45= 2*21 + 5*9
diff =3

typo in my earlier response
81 + 6 = 3*3*3*3 + 6*2
and diff = 81 - 6 = 75

Answer 3

Yeah