LCM of 646, 748, 122, 357
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 748, 122, 357 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, 748, 122, 357. So, keep reading to learn more.
Given numbers are 646,748,122,357
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,748,122,357 is 18205572.
Find LCM of 646,748,122,357 with Prime Factorization
| 2 | 646, 748, 122, 357 |
| 17 | 323, 374, 61, 357 |
| 19, 22, 61, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 17 x 19 x 22 x 61 x 21 = 18205572
Therefore, the lowest common multiple of 646,748,122,357 is 18205572.
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 748 x 122 x 357 = 21045641232
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
748 : 1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748
122 : 1, 2, 61, 122
357 : 1, 3, 7, 17, 21, 51, 119, 357
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,748,122,357, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
748:2x 2x 11x 17
122:2x 61
357:3x 7x 17
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 17x 17 = 1156
Therefore, the value for common factors is 1156.
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 = 21045641232/(1x1156)
LCM = 21045641232/1156
LCM = 18205572
Thus, we can understand that the LCM of 646,748,122,357 is 18205572.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 646, 748, 122, 357
1. What is the LCM of 646, 748, 122, 357?
Answer: LCM of 646, 748, 122, 357 is 18205572.
2. How to calculate the LCM of 646, 748, 122, 357?
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, 748, 122, 357.
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}.