30
330 is divisible by 3 , 10 and 11.
The first number that 12 and 16 go into is 48.
Any multiple of 420.
53 is already a prime number so its factors are 1 and 53. 53 does not go into 12 or 55. The only number that goes in all three is 1.
they all go into 120
There are 2 numbers that go into both 10 and 12. They are 1 and 2.
How about 60 as an example
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 cannot go into 10 evenly. It does go in unevenly though - 10 divided by 12 is 0.8333333333333.... with the 3 repeating infinitely.
12 because 12 is the largest number that can go into all of them
Any number at all can go into 12.But if you want the number to go into 12 evenly, without a fractionor a remainder, then the only possibilities are:1, -1, 2, -2, 3, -3, 4, -4, 6, -6, 12, and -12.
660, 1320, 1980, 2640, 3300, 3960 +660 . . .
120, 240, 360, 480, 600 +120 . . .