LCM of 749, 660, 399, 143
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 749, 660, 399, 143 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 749, 660, 399, 143. So, keep reading to learn more.
Given numbers are 749,660,399,143
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 749,660,399,143 is 122101980.
Find LCM of 749,660,399,143 with Prime Factorization
| 3 | 749, 660, 399, 143 |
| 7 | 749, 220, 133, 143 |
| 11 | 107, 220, 19, 143 |
| 107, 20, 19, 13 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 11 x 107 x 20 x 19 x 13 = 122101980
Therefore, the lowest common multiple of 749,660,399,143 is 122101980.
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.
749 x 660 x 399 x 143 = 28205557380
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.
749 : 1, 7, 107, 749
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
399 : 1, 3, 7, 19, 21, 57, 133, 399
143 : 1, 11, 13, 143
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 749,660,399,143, is 1.
Now, the common factors can be found like this.
749:7x 107
660:2x 2x 3x 5x 11
399:3x 7x 19
143:11x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 11 = 231
Therefore, the value for common factors is 231.
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 = 28205557380/(1x231)
LCM = 28205557380/231
LCM = 122101980
Thus, we can understand that the LCM of 749,660,399,143 is 122101980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 749, 660, 399, 143
1. What is the LCM of 749, 660, 399, 143?
Answer: LCM of 749, 660, 399, 143 is 122101980.
2. How to calculate the LCM of 749, 660, 399, 143?
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 749, 660, 399, 143.
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}.