There are 30 multiples of 30 that fall between 100 and 1,000.
There are 30 multiples of 30 between 100 and 999.
Many 'fractions' can be easily created using ratios of multiples of 30: Multiples:30 60 90 120 150 . . . Ratios:30/1, 60/2, 90/3, 120/4, 150/5 . . .
30, 60, 90, 120, 150 and so on.
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165
150
Factors - 1, 2, 3, 15, 30 Multiples 0, 30, 60, 90, 120, 150...
4
108
The common multiples of 5 and 6 are the multiples of their lowest common multiple (which is 30), so there are infinitely many common multiples of 5 and 6. The first five are: 30, 60, 90, 120, 150.
30, 60, 90, 120, 150.
30, 60, 90, 120, 150.