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LCM of 345, 860, 931, 646

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


Find the LCM of 345, 860, 931, 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, 860, 931, 646. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 345,860,931,646

Given numbers are 345,860,931,646

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

The LCM of 345,860,931,646 is 939174180.

Find LCM of 345,860,931,646 with Prime Factorization


2 345, 860, 931, 646
5 345, 430, 931, 323
19 69, 86, 931, 323
69, 86, 49, 17

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

2 x 5 x 19 x 69 x 86 x 49 x 17 = 939174180

Therefore, the lowest common multiple of 345,860,931,646 is 939174180.

LCM Formula to Find Lowest Common Multiple of 345,860,931,646

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 860 x 931 x 646 = 178443094200

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

860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

931 : 1, 7, 19, 49, 133, 931

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 345,860,931,646, is 1.

Now, the common factors can be found like this.

345:3x 5x 23

860:2x 2x 5x 43

931:7x 7x 19

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.

2x 5x 19 = 190

Therefore, the value for common factors is 190.

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 = 178443094200/(1x190)

LCM = 178443094200/190

LCM = 939174180

Thus, we can understand that the LCM of 345,860,931,646 is 939174180.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 345, 860, 931, 646

1. What is the LCM of 345, 860, 931, 646?

Answer: LCM of 345, 860, 931, 646 is 939174180.

2. How to calculate the LCM of 345, 860, 931, 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, 860, 931, 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}.