they all go into 120
How about 60 as their LCM
How about 60 as an example
8,580
There are 2 numbers that go into both 10 and 12. They are 1 and 2.
The smallest number that 8 or 12 or 20 will all go in to is 120 120 = 20 x 6 = 12 x 10 = 8 x 15 as there is then no number that goes into 6 and 10 and 15 equally.
Only the number one.
they all go into 24
It is 1 which is their HCF
12 because 12 is the largest number that can go into all of them
12 cannot go into 10 evenly. It does go in unevenly though - 10 divided by 12 is 0.8333333333333.... with the 3 repeating infinitely.
120, 240, 360, 480, 600 +120 . . .