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LCM of 521, 342, 989, 857, 391

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


Find the LCM of 521, 342, 989, 857, 391 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 521, 342, 989, 857, 391. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 521,342,989,857,391

Given numbers are 521,342,989,857,391

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

The LCM of 521,342,989,857,391 is 2567378288862.

Find LCM of 521,342,989,857,391 with Prime Factorization


23 521, 342, 989, 857, 391
521, 342, 43, 857, 17

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

23 x 521 x 342 x 43 x 857 x 17 = 2567378288862

Therefore, the lowest common multiple of 521,342,989,857,391 is 2567378288862.

LCM Formula to Find Lowest Common Multiple of 521,342,989,857,391

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.

521 x 342 x 989 x 857 x 391 = 59049700643826

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.

521 : 1, 521

342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342

989 : 1, 23, 43, 989

857 : 1, 857

391 : 1, 17, 23, 391

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 521,342,989,857,391, is 1.

Now, the common factors can be found like this.

521:521

342:2x 3x 3x 19

989:23x 43

857:857

391:17x 23

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

23 = 23

Therefore, the value for common factors is 23.

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 = 59049700643826/(1x23)

LCM = 59049700643826/23

LCM = 2567378288862

Thus, we can understand that the LCM of 521,342,989,857,391 is 2567378288862.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 521, 342, 989, 857, 391

1. What is the LCM of 521, 342, 989, 857, 391?

Answer: LCM of 521, 342, 989, 857, 391 is 2567378288862.

2. How to calculate the LCM of 521, 342, 989, 857, 391?

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 521, 342, 989, 857, 391.

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}.