Yes, they must be.
Chat with our AI personalities
Numbers divisible by 6 will have at least one 2 and one 3 as prime factors because 2 x 3 = 6. The same is true for 2, 4 and 8. Numbers divisible by 4 are also divisible by 2. Numbers divisible by 8 are also divisible by 4 and 2.
0, 2, 4, 6 and 8
Any number that ends in an even number (0, 2, 4, 6, 8) is divisible by 2.
1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520
Those of the form 32n, where n is an integer. There are infinitely many of them, so I hope you weren't expecting an exhaustive list.