36, 144, 324, 576, 900, ...
No, 16 is not the only square number that's a multiple of 4.
4
12 is the smallest multiple of 3 and 4.
I assume you mean LCM, least common multiple. The least common multiple of 3 and 4 is 12. 12 is a multiple of 3. 12 is a multiple of 4. No smaller number is a multiple of both 3 and 4.
The number 58 is not considered a multiple of 4. A simple way of figuring out if a number is a multiple of another number is by dividing the number in question by the multiple. Such as finding out that 12 is a multiple of four. 12/4=3. If the number comes up as a whole number - then that number is a multiple.
36
36
8 is a multiple and is not a perfect square.
36
No, 16 is not the only square number that's a multiple of 4.
36
4 is a square number but 3 is a prime number
4
12 is the smallest multiple of 3 and 4.
16, 36
I assume you mean LCM, least common multiple. The least common multiple of 3 and 4 is 12. 12 is a multiple of 3. 12 is a multiple of 4. No smaller number is a multiple of both 3 and 4.
12