Factors are useful when you're trying to reduce fractions. Multiples are useful when you're trying to find a least common denominator.
Any number can be a common multiple of two or more fractions. The concept of common multiples is useful only in the context of multiples of integers.
It is always useful to know about factors and multiples.
They are all multiples.
Those are known as "common multiples". The smallest POSITIVE of these common multiples is called the "least common multiple".
CJ:there are no common multiples for 25
the common multiples are most all of the multiples of 8
All multiples of 840 are common multiples of 60 and 280
uhhhhh
Common Multiples of 8:8,16,24,32,40,48,56,64,72,80,88 and 96 Common Multiples of 12:12,24,36,48,60,72,84 and 96
Common multiples of 9 and 10 are all of the multiples of 90.
there are infinite amount of common multiples.