A = LW
A = 188
W = 4
188 = 4L
188/4 = L
47 = L....so the length is 47 meters
A factor of 14 is 7, and it isnt a multiple of 2.
7 x 2 = 14
I'm assuming, from what you've given me that the question is asking to do this.
15n=647
647 divided by 15 equals 43.13...repeated
Let me know if this is what you are looking for.