True.
Yes.
Any multiple of 10 is a multiple of 5 and 10
Any number between one and 1000 can be a common multiple.
Common multiples include any multiple of 60.
Common multiples include any multiple of 405.
Halfway between any two multiples of ten is always a multiple of five because each multiple of ten is also a multiple of five. For example, if you take the multiples of ten 20 and 30, their halfway point is 25, which is a multiple of five. This holds true for any pair of multiples of ten, as the average will always yield a number divisible by five.
Yes.
Any multiple of 28.
Any multiple of 9w
Yes.
All factors of a number n will be factors of any multiple of n. All multiples of a number n will be multiples of any factor of n.
Multiples of any multiple of 6.
Any multiple of 10 is a multiple of 5 and 10
Any number between one and 1000 can be a common multiple.
Any number between 1 and 50 can be a common multiple.
The multiples of 2 and 24 include any multiple of 24. The multiples of 22 and 4 include any multiple of 44.
Any multiple of 15.