LCM of 3 Numbers Calculator LCM of 4 Numbers Calculator LCM of 5 Numbers Calculator LCD Calculator How to find LCM LCM and HCF Questions Least Common Denominator Calculator Greatest Common Divisor Calculator HCF Calculator HCF of 3 Numbers Calculator HCF of 4 Numbers Calculator GCD Calculator Greatest Common Factor Calculator Least Common Multiple Calculator Common Factors Calculator

LCM of 345, 271, 638, 646

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


Find the LCM of 345, 271, 638, 646 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 345, 271, 638, 646. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 345,271,638,646

Given numbers are 345,271,638,646

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

The LCM of 345,271,638,646 is 19266888630.

Find LCM of 345,271,638,646 with Prime Factorization


2 345, 271, 638, 646
345, 271, 319, 323

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

2 x 345 x 271 x 319 x 323 = 19266888630

Therefore, the lowest common multiple of 345,271,638,646 is 19266888630.

LCM Formula to Find Lowest Common Multiple of 345,271,638,646

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.

345 x 271 x 638 x 646 = 38533777260

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.

345 : 1, 3, 5, 15, 23, 69, 115, 345

271 : 1, 271

638 : 1, 2, 11, 22, 29, 58, 319, 638

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

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 345,271,638,646, is 1.

Now, the common factors can be found like this.

345:3x 5x 23

271:271

638:2x 11x 29

646:2x 17x 19

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

2 = 2

Therefore, the value for common factors is 2.

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 = 38533777260/(1x2)

LCM = 38533777260/2

LCM = 19266888630

Thus, we can understand that the LCM of 345,271,638,646 is 19266888630.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 345, 271, 638, 646

1. What is the LCM of 345, 271, 638, 646?

Answer: LCM of 345, 271, 638, 646 is 19266888630.

2. How to calculate the LCM of 345, 271, 638, 646?

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 345, 271, 638, 646.

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}.