Given Numbers are 423, 428

We can find the LCM of 423, 428 using the brute force method, prime factorization method, or GCD method.

To use brute force method, list the multiples of 423 and 428

Multiples of 423 =423,846,1269,1692,2115,2538,2961,3384,3807,4230,4653,5076,5499,5922,6345,6768,7191,

Multiples of 428 =428,856,1284,1712,2140,2568,2996,3424,3852,4280,4708,5136,5564,5992,6420,6848,7276,

Now, get the least common multiple of 423, 428 which is 181044

So, the LCM of 423, 428 is 181044.

One method for determining the LCM of 423 and 428 is to compare the prime factorization of each number. You can find the prime factorization for each number by following the instructions below:

Here is 423's prime factorization:

Prime factors of 423 are 3,47.

423 = 3²×47¹

And this is 428's prime factorization:

Prime factors of 428 are 2,107.

428 = 2²×107¹

When comparing the prime factorization of these two numbers, look for the highest power to which each prime factor is raised. In this case, the following primary factors must be considered: 3,47, 2,107

2²×3²×47¹×107¹ = 181044

This shows that the LCM of 423 and 428 is 181044.

The first step in determining the Least Common Multiple of 423 and 428 is to generate a list of multiples for each number.

Lets look at the multiples of these two numbers, 423 and 428:

Lets look at the first ten multiples of these numbers, 423 and 428:

423,846,1269,1692,2115,2538,2961,3384,3807,7191 are the first ten multiples of 423.

428,856,1284,1712,2140,2568,2996,3424,3852,7276 are the first ten multiples of 428.

You can continue to list the multiples of these numbers until you find a match. Once you have found a match, or several matches, the Least Common Multiple is the smallest of these matches. The first matching multiple(s) of 423 and 428, for example, are 5076, 7191, and 6848. 181044 is the least common multiple since it is the smallest.

423 and 428 have an LCM of 181044.

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 423 and 428, than apply into the LCM equation.

GCF(423,428) = 1
LCM(423,428) = ( 423 × 428) / 1
LCM(423,428) = 181044 / 1
LCM(423,428) = 181044

1. What is the LCM of 423 and 428?

The LCM of 423 and 428 is 181044.

2. How to find the lowest common multiple of 423 and 428?

To find the lowest common multiple of 423 and 428, we have to get the multip;es of both numbers and identify the least common multiple in them which is 181044.

3. What are the Factors of 423?

Answer: Factors of 423 are 1, 3, 9, 47, 141, 423. There are 6 integers that are factors of 423. The greatest factor of 423 is 423.

4. What are the Factors of 428?

Answer: Factors of 428 are 1, 2, 4, 107, 214, 428. There are 6 integers that are factors of 428. The greatest factor of 428 is 428.

Answer:

Least Common Multiple of 423 and 428 = 181044

Step 1: Find the prime factorization of 423

423 = 3 x 3 x 47

Step 2: Find the prime factorization of 428

428 = 2 x 2 x 107

Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 181044 = 2 x 2 x 3 x 3 x 47 x 107

Step 4: Therefore, the least common multiple of 423 and 428 is 181044.