Question

an odd number under 50 with least 5 factors

Answer 1

Using "^" for powers. I believe the smallest ODD number with exactly 5 factors would be 3^4 = 81. Since you say "at least", we could also consider numbers with 6 factors; the smallest of those would be 3^2 x 5 = 45. So that would be a number under 50.

Answer 2

45 is a number with 6 factors which are 1,3,5,9,15,45. I can assure you this is correct. I hope this helped.