LCM of 675, 646, 174, 638
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 675, 646, 174, 638 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 675, 646, 174, 638. So, keep reading to learn more.
Given numbers are 675,646,174,638
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 675,646,174,638 is 139099950.
Find LCM of 675,646,174,638 with Prime Factorization
| 2 | 675, 646, 174, 638 |
| 3 | 675, 323, 87, 319 |
| 29 | 225, 323, 29, 319 |
| 225, 323, 1, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 29 x 225 x 323 x 1 x 11 = 139099950
Therefore, the lowest common multiple of 675,646,174,638 is 139099950.
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.
675 x 646 x 174 x 638 = 48406782600
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.
675 : 1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675
646 : 1, 2, 17, 19, 34, 38, 323, 646
174 : 1, 2, 3, 6, 29, 58, 87, 174
638 : 1, 2, 11, 22, 29, 58, 319, 638
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 675,646,174,638, is 1.
Now, the common factors can be found like this.
675:3x 3x 3x 5x 5
646:2x 17x 19
174:2x 3x 29
638:2x 11x 29
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 3x 29 = 348
Therefore, the value for common factors is 348.
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 = 48406782600/(1x348)
LCM = 48406782600/348
LCM = 139099950
Thus, we can understand that the LCM of 675,646,174,638 is 139099950.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 675, 646, 174, 638
1. What is the LCM of 675, 646, 174, 638?
Answer: LCM of 675, 646, 174, 638 is 139099950.
2. How to calculate the LCM of 675, 646, 174, 638?
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 675, 646, 174, 638.
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}.