yes
3, yes; 2, no
1, 3, 5, 15, 31, 71, 93, 155, 213, 355, 465, 1065, 2201, 6603, 11005, 33015.
No.
Yes; all numbers that are divisible by 9 are divisible by 3.
No.
No.
Yes
no
yes
yes
Yes, both.
Yes: 33,015 / 5 = 6,603
3, yes; 2, no
1, 3, 5, 15, 31, 71, 93, 155, 213, 355, 465, 1065, 2201, 6603, 11005, 33015.
Yes. All you need to see is that '5' on the end of it, and you know. Nothing else matters.
1, 3, 5, 15, 31, 71, 93, 155, 213, 355, 465, 1065, 2201, 6603, 11005, 33015.