The question does not make any sense at all because72 is not an odd number72 is not the largest factor of 720
215
25
2
81 is an odd composite number.
The largest odd factor of 2011 is 2011.
The question does not make any sense at all because72 is not an odd number72 is not the largest factor of 720
81
Since 243 = 35, the largest square factor is 34 = 81.
501
9
365
15
7
95
17
215