Because numbers are infinite, there are an infinite number of multiples of 15.
One number (A) is the multiple of another (B) if you can multiply (A) enough times to get (B).
So, for instance, 12 is a multiple of 4, because 4x3 is 12. 16 is also a multiple of 4, because 4x4 is 16.
So the multiples of 15 are 15 (15x1), 30 (15x2), 45 (15x3) and so on up to infinity.
5, 10, 15, 30
30 45 60 75 90
6,12,18,24,30,36,42,48.54.
The LCM of 12 and 20 is 60
multiples of 6-6 multiplesof 3- 3,6 multiples of 2- 2,4,6 LCM is 6
Any number that ends in 5 is a multiple of 5.5, 10, 15, 20, 25, 30 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100Simple multiplication, or addition, depending on how you look at it.
There are an infinite number of them, and I'm rather busy at the moment. 18, 36, 54, 72, 90, 108, 126, 144, 162, and 180 are the smallest ten of them.
The common multiples of 7, 14, and 21 are the infinite set of multiples of their least common multiple, which is 42. So the common multiplesof 7, 14, and 21 are 42, 84, 126, 168, and so on.Any multiple of 42.
For 15:0 * 15 = 01 * 15 = 152 * 15 = 303 * 15 = 454 * 15 = 605 * 15 = 756 * 15 = 907 * 15 = 1058 * 15 = 1209 * 15 = 13510 * 15 = 15011 * 15 = 16512 * 15 = 18013 * 15 = 19514 * 15 = 21015 * 15 = 22516 * 15 = 24017 * 15 = 25518 * 15 = 27019 * 15 = 28520 * 15 = 30021 * 15 = 31522 * 15 = 33023 * 15 = 34524 * 15 = 36025 * 15 = 37526 * 15 = 39027 * 15 = 40528 * 15 = 42029 * 15 = 43530 * 15 = 450For 25:0 * 15 = 01 * 15 = 252 * 15 = 503 * 15 = 754 * 15 = 1005 * 15 = 1256 * 15 = 1507 * 15 = 1758 * 15 = 2009 * 15 = 22510 * 15 = 25011 * 15 = 27512 * 15 = 30013 * 15 = 32514 * 15 = 35015 * 15 = 37516 * 15 = 40017 * 15 = 42518 * 15 = 45019 * 15 = 47520 * 15 = 50021 * 15 = 52522 * 15 = 55023 * 15 = 57524 * 15 = 60025 * 15 = 62526 * 15 = 65027 * 15 = 67528 * 15 = 70029 * 15 = 72530 * 25 = 750
15, 30, 45, 60, 7515x1=1515x2=15+15=3015x3=15+15+15=4515x4=15+15+15+15=6015x5=15+15+15+15+15=75The first 5 multiples of 15 are:15,30,45,60,75
It equals 285
15