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LCM of 646, 204, 402, 621, 782

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


Find the LCM of 646, 204, 402, 621, 782 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, 204, 402, 621, 782. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 646,204,402,621,782

Given numbers are 646,204,402,621,782

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

The LCM of 646,204,402,621,782 is 53756244.

Find LCM of 646,204,402,621,782 with Prime Factorization


2 646, 204, 402, 621, 782
3 323, 102, 201, 621, 391
17 323, 34, 67, 207, 391
23 19, 2, 67, 207, 23
19, 2, 67, 9, 1

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

2 x 3 x 17 x 23 x 19 x 2 x 67 x 9 x 1 = 53756244

Therefore, the lowest common multiple of 646,204,402,621,782 is 53756244.

LCM Formula to Find Lowest Common Multiple of 646,204,402,621,782

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 204 x 402 x 621 x 782 = 25726878278496

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

204 : 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204

402 : 1, 2, 3, 6, 67, 134, 201, 402

621 : 1, 3, 9, 23, 27, 69, 207, 621

782 : 1, 2, 17, 23, 34, 46, 391, 782

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,204,402,621,782, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

204:2x 2x 3x 17

402:2x 3x 67

621:3x 3x 3x 23

782:2x 17x 23

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

2x 2x 2x 3x 3x 17x 17x 23 = 478584

Therefore, the value for common factors is 478584.

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 = 25726878278496/(1x478584)

LCM = 25726878278496/478584

LCM = 53756244

Thus, we can understand that the LCM of 646,204,402,621,782 is 53756244.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 646, 204, 402, 621, 782

1. What is the LCM of 646, 204, 402, 621, 782?

Answer: LCM of 646, 204, 402, 621, 782 is 53756244.

2. How to calculate the LCM of 646, 204, 402, 621, 782?

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, 204, 402, 621, 782.

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}.