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There are an infinite number of common multiples of 21 and 15 .

The smallest two of them are 105 and 210 . A couple of others are 1,890 and 453,705 .

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What is the multiple of 2 or 3?

there are many multiples for every number multiples of 2 - 2 4 6 8 10 12 14 16 18 multiples of 3 - 3 6 9 12 15 18 21 24 27 the least common multiple between these two numbers would be 6


What are the first two common multiples of 5 3 and 8?

The first common multiples of 5, 3, and 8 are found by listing out the multiples of each number and finding the least common multiple. The multiples of 5 are 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, and so on. The multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, and so on. The multiples of 8 are 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, and so on. The first common multiples of 5, 3, and 8 are 24 and 48.


What is the first three common multiples of 9 and 21?

LCM(9, 21) = 63 so the numbers are 63, 63*2 and 63*3.


What is the least common multiples using prime factorization for 2 12 15?

12=22x3 15=3x5 So the LCM of 2, 12 and 15 is 22x3x5 = 60


What are common multiples of 12 and 15?

To find the common multiples of 12 and 15, you need to break them down into their prime factors:12 = 2x2x315 = 3x5The next step is to identify any common factors. In this case, both numbers have a 3 as a prime factor, and so you can discard one of those. Considering all the other prime factors (2, 2, 3 and 5) and multiplying them together, we will find the LCM:2x2x3x5 = 60.To find the other common multiples, you need to multiply this number by any integer (2, 3, 4...)When you do this, the first few common multiples of 12 and 15 work out as:60, 120, 180, 240...There is an infinite number of common multiples for 12 and 15. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder). However, the least or lowest common multiple (LCM) of 12 and 15 is 60.

Related Questions

What are 2 common multiples of 15 and 21?

105, 210


What is the common multiples of 2 and3 and 15?

30 and all its multiples


What is the 2 common multiples of 15 and 27?

the first two common multiples of 15,27 are 135,270


What are the first 3 common multiples of 16and 21?

The most common multiples are 13 3 3234 2 2 2 2 232


What are the first two common multiples of 2 3 and 7?

To find the common multiples of 2, 3, and 7, we first list the multiples of each number: Multiples of 2: 2, 4, 6, 8, 10, 12, ... Multiples of 3: 3, 6, 9, 12, 15, 18, ... Multiples of 7: 7, 14, 21, 28, 35, ... The first common multiple of 2, 3, and 7 is 6, as it is the smallest number that is a multiple of all three numbers. The second common multiple is 12, as it is the next number that is a multiple of all three numbers.


What are the common multiples of 2 4 5 10 and 15?

The common multiples of 2, 4, 5, 10, and 15 are the multiples of the set's LCM, which is 60. Therefore, the common multiples of 2, 4, 5, 10, and 15 are 60, 120, 180, 240, 300, 360, and so on. There is an infinite number of common multiples for 2 5 10 4 and 15. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder). However, the least or lowest common multiple (LCM) of 2 5 10 4 and 15 is 60.


What are the first 2 common multiples of 6 and 15?

30 and 60


What are the common multiples of 2 3 and 15 that are lower then 100?

They have to be multiples of 15 so all of them will be multiples of 3. They all have to be even so you are left with 30, 60, 90


What is the lcf of 2 and 3?

Do you mean the lowest common multiple? (lcm)?Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24...Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27...Common multiples of 2 and 3 include 6, 12, 18, and 24.


What are common multiples of 2 3 and 7?

Oh, dude, common multiples are just numbers that all three of these divas can divide into without any drama. So, for 2, 3, and 7, their common multiples would be like 42, 84, 126, and so on. It's like finding a party playlist that everyone can groove to without any complaints.


What are the common multiples of 2 and 3 and 15?

30, 60, 90 and so on.


What common multiples of 15?

To find common multiples you need the multiples of at least 2 numbers for example: To find multiples of 15 you have to do this: 15 x 1 = 15 15 x 2 = 30 15 x 3 = 45 15 x 4 = 60 15 x 5 = 75 The first five multiples of 15 are 15, 30, 45, 60, 75 Now find the multiples of another number like lets say 9 9 x 1 = 9 9 x 2 = 18 9 x 3 = 27 9 x 4 = 36 9 x 5 = 45 The first five multiples of 9 are 9, 18, 27, 36, 45 Now compare the results of the two numbers 15 and 9 and you can see they have a common multiple of 45. Normally you want to continue finding multiples for each number until you have at least 2 common multiples.