LCM of 749, 638, 633, 455
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 749, 638, 633, 455 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, 638, 633, 455. So, keep reading to learn more.
Given numbers are 749,638,633,455
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 749,638,633,455 is 19661631990.
Find LCM of 749,638,633,455 with Prime Factorization
| 7 | 749, 638, 633, 455 |
| 107, 638, 633, 65 |
Multiply the prime numbers at the bottom and the left side.
7 x 107 x 638 x 633 x 65 = 19661631990
Therefore, the lowest common multiple of 749,638,633,455 is 19661631990.
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 638 x 633 x 455 = 137631423930
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
638 : 1, 2, 11, 22, 29, 58, 319, 638
633 : 1, 3, 211, 633
455 : 1, 5, 7, 13, 35, 65, 91, 455
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 749,638,633,455, is 1.
Now, the common factors can be found like this.
749:7x 107
638:2x 11x 29
633:3x 211
455:5x 7x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7 = 7
Therefore, the value for common factors is 7.
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 = 137631423930/(1x7)
LCM = 137631423930/7
LCM = 19661631990
Thus, we can understand that the LCM of 749,638,633,455 is 19661631990.
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FAQs on LCM of 749, 638, 633, 455
1. What is the LCM of 749, 638, 633, 455?
Answer: LCM of 749, 638, 633, 455 is 19661631990.
2. How to calculate the LCM of 749, 638, 633, 455?
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, 638, 633, 455.
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}.