2, 4
Itself and any of its factors will divide evenly into -72 with no remainders.
Only 1 because 72 is a prime number which is a whole number greater than on two factors
There are an infinite number of multiples. Multiples are simply numbers that are evenly divided by 72. You can continue to multiply 72 by numbers, and they will all be multiples of 72. 72, 144, 216, 288, 360.....etc. This can continue on forever, therefore, there are infinite multiples.
Suppose it is x. Then 72/x = 30% = 30/100 So x = 72*100/30 = 720/3 = 240
2, 4
Only the number one.
1, 2, 3, 4, 6, 12.
2.
Itself and any of its factors will divide evenly into -72 with no remainders.
1 and 3.
3
The number is 24.
Itself and any of its factors
72/36 = 2
1, 3 and 9 will go into both numbers evenly
72 and 100 is divisible by 2.