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2 x 3 x 3 = 18

3 x 7 = 21

2 x 3 x 3 x 7 = 126, the LCM

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9y ago

It is: 72

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Q: What is the LCM of 18 21 use prime factorizations?
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What is the least common multiple of 18 5 and 10?

The prime factorizations are: 5 3 * 3 * 2 2 * 5 Eliminating the common factors, we get 3 * 3 * 2 * 5 Simplifying gives us 90 The LCM of 5, 18, and 10 is 90.


What is the least common multiple of 18 13 and 9?

Since 13 is a prime number, and 18 is the LCM of 9 and 18, then 13*18 = 234 is the LCM of 13, 9, and 18.


What is the LCM of 6 7 and 18?

To find the Least Common Multiple (LCM) of 6, 7, and 18, we first need to find the prime factorization of each number. The prime factorization of 6 is 2 x 3, the prime factorization of 7 is 7, and the prime factorization of 18 is 2 x 3^2. To find the LCM, we take the highest power of each prime factor that appears in any of the numbers, which gives us 2 x 3^2 x 7 = 126. Therefore, the LCM of 6, 7, and 18 is 126.


What is the LCM of 6 9 and 36?

To find the Least Common Multiple (LCM) of 6, 9, and 36, we first need to factor each number into its prime factors. The prime factorization of 6 is 2 x 3, the prime factorization of 9 is 3 x 3, and the prime factorization of 36 is 2 x 2 x 3 x 3. To find the LCM, we take the highest power of each prime factor that appears in any of the numbers: 2^2 x 3^2 = 36. Therefore, the LCM of 6, 9, and 36 is 36.


What is the least common multiple of 6 18 and 27?

If you want to find the LCM of two numbers, you first need to break those numbers down into their prime factors: 27=3x3x3 18=3x3x2 The next step is to discard the duplicate entries of any common prime factors. In this case, both numbers have two 3s in their prime factors, so we can discard 2 of these, leaving us with 3,3,3 and 2. Multiply all these together for the LCM: 3x3x3x2 = 54 So the lowest common multiple of 27 and 18 is 54.

Related questions

What is the LCM of a pair of numbers whose prime factorizations are 2x2x3x5 and 2x3x3?

The LCM of 60 and 18 is 180


What is the LCM of 18 32 and 48?

To find the Least Common Multiple (LCM) of 18, 32, and 48, we first need to prime factorize each number. Then, we identify the highest power of each prime factor that appears in any of the factorizations. The LCM is the product of these prime factors raised to their highest powers: LCM(18, 32, 48) = 2^5 * 3^2 = 288.


What is the LCM of 6 and 10 and 18?

To find the Least Common Multiple (LCM) of 6, 10, and 18, we first need to prime factorize each number. 6 = 2 x 3 10 = 2 x 5 18 = 2 x 3^2 Then, we take the highest power of each prime factor that appears in any of the factorizations. So, LCM(6, 10, 18) = 2 x 3^2 x 5 = 90. Therefore, the LCM of 6, 10, and 18 is 90.


What is the LCM of 18 32 72?

To find the Least Common Multiple (LCM) of 18, 32, and 72, you first need to prime factorize each number. 18 = 2 * 3^2, 32 = 2^5, and 72 = 2^3 * 3^2. Then, identify the highest power of each prime factor that appears in any of the factorizations. The LCM is the product of these highest powers: 2^5 * 3^2 = 288. Therefore, the LCM of 18, 32, and 72 is 288.


What is the LCM of 3 9 6 18?

To find the Least Common Multiple (LCM) of 3, 9, 6, and 18, we first need to factorize each number into its prime factors. 3 = 3, 9 = 3^2, 6 = 2 * 3, and 18 = 2 * 3^2. Then, we take the highest power of each prime factor that appears in any of the factorizations, which gives us 2^1 * 3^2 = 18. Therefore, the LCM of 3, 9, 6, and 18 is 18.


What is the least common multiple of 18 5 and 10?

The prime factorizations are: 5 3 * 3 * 2 2 * 5 Eliminating the common factors, we get 3 * 3 * 2 * 5 Simplifying gives us 90 The LCM of 5, 18, and 10 is 90.


What are the prime factorizations of 18 27 and 90?

The prime factorization of 18 is 2*3*3 The prime factorization of 27 is 3*3*3 The prime factorization of 90 is 2*3*3*5


Lcm of 18 and 24 using prime factorization?

18 in pime exponents is 2*32 24 in prime exponents is 23*3 LCM: 23*32 = 72


What is the LCM of 18 and 48 using prime factorization?

It is: 144


What is the LCM of 18 and 29?

since 29 is a prime simply 18*29=522


What is the LCM of 18 20 and 30?

To find the lowest common multiple for numbers, prime factor each the use each prime number the number of times it appeared the most in each number. 18=2x3x3 20=2x2x5 30=2x3x5 lcm=2x2x3x3x5=180


What is the least common multiple of 18 13 and 9?

Since 13 is a prime number, and 18 is the LCM of 9 and 18, then 13*18 = 234 is the LCM of 13, 9, and 18.