-15
They are 10 and 20
30, 60, 90, 120, 150
The first 6 multiples of 5 are: 5, 10, 15, 20, 25, and 30.
5, 10, 15, 20
15 & 20 have an infinite number of Common Multiples; the first three are 60, 120 and 180.
60, 120 and 180
The common multiples of 9, 15, and 20 are an infinite set of multiples of their least common multiple, which is 180. so the common multiples of 9, 15, and 20 are 180, 360, 540, 720, 900, 1080, 1260, 1440, 1620, 1800, and so on.
The first five multiples of 5 are 5, 10, 15, 20 and 25. For them to be common, they need to be compared to another set of multiples.
60, 120, 180 The LCM is 60
The first four multiples of five: 5, 10, 15, 20
60 and all its multiples
The multiples of 20 are 20, 40, 60, 80, 100, 120... The multiples of 30 are 30, 60, 90, 120, 150... The multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135... The common multiples of 20, 30, and 15 are 60, 120, 180, 240...
LCD= 60
Ans: 15, 30 and 45 Prime factorization of 3 and 15 3: 3 15: 3 x 5 15, 30 and 45. Hi My names Bob
The LCM of 15 and 20 is 60. That is the multiple of the combined prime factors of both numbers (2 x 2 x 3 x 5).The multiples of 15 are 15, 30, 45, 60, and so on. The multiples of 20 are 20, 40, 60, and so on. Thus 60 is the first number that can be made from multiples of both 15 and 20.Least Common Multiple (LCM) for 15 20 is 6060
What are the first three common multiples of four and five