1 and 2.
They are: 1, 2, 4, 8, 16, 32, 64, 128, 256.
1 can, 2 can, and there are 7 more (including 256).
no numbers!
All these numbers go into 768 evenly: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768.
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
2
The factors of 256 are the numbers that can be multiplied together to equal 256. These factors include 1, 2, 4, 8, 16, 32, 64, 128, and 256. Each of these numbers can divide evenly into 256 without leaving a remainder, making them factors of 256.
256, 512, 768, 1024, 1280, 1536, 1792 +256 . . .
The numbers that go into 30 are1, 2, 3, 5, 30, 15, 10, 6
60.5
1,2,3,6,7