Multiples of 5 and 10 are called common multiples.
Factor them. 2 x 3 = 6 2 x 5 = 10 Combine the factors, eliminating duplicates. 2 x 3 x 5 = 30, the LCM.
To start with the 3 common multiples of 5 they are........10,15,and 25the 3 common multiples of 3 are.........15,30,and 45hope this helped=)
The GCF is 5.
They are 1 and 5
70
20
60 and its multiples
Since the lowest common multiple of 3 and 5 is 15, the common multiples of 3 and 5 are the multiples of 15: 30, 45, 60, 75, 90, etc...
The LCM of 5 and 10 is 10.
There are infinitely many common multiples of 3, 5 and 7, each one 105 larger than the previous one. Or to put it another way: the common multiples of 3, 5 and 7 are the multiples of their lowest common multiple which is 105. ie their common multiples are all the multiples of 105, of which there is no end - there is an infinite number of multiples of 105 (or any other number [except zero]).
The first two common multiples of 235 is 5 and 47.