there is not much of a pattern there but i would say 45
The next number in the sequence is 480
The next number in the sequence is 27.
8
0.1
10
The next number in the sequence is 480
next in the sequence: 10,20,30,20
The next number in the sequence is 27.
The pattern in the sequence is that each number is divided by 10 to get the next number. Therefore, the next number in the sequence would be obtained by dividing 4 by 10, which equals 0.4.
As presented in the question it looks like a single number 51015. The lowest common multiple of 51015 depends upon the other number(s) with which 51015 has common multiples, but it will always be one of the multiples of 51015, namely: 51015, 102030, 153045, 204060, 255075, 306090, ... However, I suspect that you wrote the question separating 5 10 and 15 by commas with no spaces following the commas (ie ``...multiple of 5,10,15'') - unfortunately due to limitations some punctuation (the comma being one of them) get stripped from questions. The lowest common multiple of 5, 10 and 15 is 30.
8
10
If the sequence is determined by 100 - 70 = 30, then the next number is 10.
2030
0.1
5
5