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LCM of 646, 221, 224, 153

Created By : Jatin Gogia
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023


Find the LCM of 646, 221, 224, 153 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 646, 221, 224, 153. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 646,221,224,153

Given numbers are 646,221,224,153

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 646,221,224,153 is 8465184.

Find LCM of 646,221,224,153 with Prime Factorization


2 646, 221, 224, 153
17 323, 221, 112, 153
19, 13, 112, 9

Multiply the prime numbers at the bottom and the left side.

2 x 17 x 19 x 13 x 112 x 9 = 8465184

Therefore, the lowest common multiple of 646,221,224,153 is 8465184.

LCM Formula to Find Lowest Common Multiple of 646,221,224,153

LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

Firstly, we have to find the product of all the numbers.

646 x 221 x 224 x 153 = 4892876352

Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.

646 : 1, 2, 17, 19, 34, 38, 323, 646

221 : 1, 13, 17, 221

224 : 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224

153 : 1, 3, 9, 17, 51, 153

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,221,224,153, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

221:13x 17

224:2x 2x 2x 2x 2x 7

153:3x 3x 17

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2x 17x 17 = 578

Therefore, the value for common factors is 578.

Now that we have all the elements of the formula, we can plug them in to calculate the LCM.

LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

LCM = 4892876352/(1x578)

LCM = 4892876352/578

LCM = 8465184

Thus, we can understand that the LCM of 646,221,224,153 is 8465184.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 646, 221, 224, 153

1. What is the LCM of 646, 221, 224, 153?

Answer: LCM of 646, 221, 224, 153 is 8465184.

2. How to calculate the LCM of 646, 221, 224, 153?

The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 646, 221, 224, 153.

3. What is the LCM formula?

The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.