Itself and any of its multiples
Yes, 1620 is divisible by all of the given numbers
Yes - 1620/3 = 540
All multiples of 324 (which are infinite) including 324, 648, 972, 1296, 1620 . . .
Yes because 1620/6 = 270
Yes.
Itself and any of its multiples
Itself and any of its multiples
All numbers are divisible by 1.
Yes by 10 but not evenly by 69
All numbers that are multiples of 270 are divisible by 270. The first 25 numbers in that list are: 270 540 810 1080 1350 1620 1890 2160 2430 2700 2970 3240 3510 3780 4050 4320 4590 4860 5130 5400 5670 5940 6210 6480 6750
Prime numbers are divisible because any numbers that are divisible are prime. If a number isn't divisible, it isn't prime. Prime numbers have to be divisible by at least one pair of numbers to be prime.
All whole numbers are divisible. If you mean divisible by numbers other than 1 and themselves, the answer is the set of composite numbers.