No
67 is a prime number, but 21 isn't. A prime number can only be evenly divided by '1' and itself. 21 can be evenly divided by 1, 3, 7, and 21.
The number 63 can be evenly divided by 1, 3, 7, 9, 21, and 63.
36.8571
48
7.
840
No
The smallest number that will can be divided by 2, 3, 4, 5, 6 and 7 is 420.
LCM(3, 4, 7, 9) = 252
7 is a prime number and is also too small to have any numbers evenly divided into it.
256
Yes. In theory it can be divided by any number. It can also be divided evenly by any of its factors. They are 1, 3, 7 and 21.
The smallest number into which both 7 and 15 can be divided evenly is 105.
67 is a prime number, but 21 isn't. A prime number can only be evenly divided by '1' and itself. 21 can be evenly divided by 1, 3, 7, and 21.
Yes; it can be evenly divided by 7.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 7 is an odd number.