Answer:
There is no greatest perfect square that is a factor of 1290.
Step-by-step explanation:
The factors of 1290 are 1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290. There are no perfect squares as factors.
There is no greatest perfect square of 1290
Your answer is, 16 for B, 32 for C, and 48 for D.
Sure hope this helps you