What numbers between 1 and 1000 can NOT be expressed as the sum of consecutive integers?
ie 15 = 7 + 8
18 = 5 + 6 + 7
so neither one of these are in the set of numbers that can NOT be expressed as a sum of consecutive integers.
BONUS: one number can be expressed 15 different ways as a sum of consecutive numbers what is it and list the ways.
ie 15 = 7 + 8
18 = 5 + 6 + 7
so neither one of these are in the set of numbers that can NOT be expressed as a sum of consecutive integers.
BONUS: one number can be expressed 15 different ways as a sum of consecutive numbers what is it and list the ways.

b = b + ...