LCM of 688, 845, 645, 213
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 688, 845, 645, 213 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 688, 845, 645, 213. So, keep reading to learn more.
Given numbers are 688,845,645,213
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 688,845,645,213 is 123829680.
Find LCM of 688,845,645,213 with Prime Factorization
| 3 | 688, 845, 645, 213 |
| 5 | 688, 845, 215, 71 |
| 43 | 688, 169, 43, 71 |
| 16, 169, 1, 71 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 43 x 16 x 169 x 1 x 71 = 123829680
Therefore, the lowest common multiple of 688,845,645,213 is 123829680.
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.
688 x 845 x 645 x 213 = 79870143600
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.
688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
845 : 1, 5, 13, 65, 169, 845
645 : 1, 3, 5, 15, 43, 129, 215, 645
213 : 1, 3, 71, 213
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 688,845,645,213, is 1.
Now, the common factors can be found like this.
688:2x 2x 2x 2x 43
845:5x 13x 13
645:3x 5x 43
213:3x 71
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 43 = 645
Therefore, the value for common factors is 645.
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 = 79870143600/(1x645)
LCM = 79870143600/645
LCM = 123829680
Thus, we can understand that the LCM of 688,845,645,213 is 123829680.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 688, 845, 645, 213
1. What is the LCM of 688, 845, 645, 213?
Answer: LCM of 688, 845, 645, 213 is 123829680.
2. How to calculate the LCM of 688, 845, 645, 213?
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 688, 845, 645, 213.
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}.