Find the LCM of 402, 691, 168, 870, 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 402, 691, 168, 870, 638. So, keep reading to learn more.
Given numbers are 402,691,168,870,638
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 402,691,168,870,638 is 12405744120.
Find LCM of 402,691,168,870,638 with Prime Factorization
2 | 402, 691, 168, 870, 638 |
3 | 201, 691, 84, 435, 319 |
29 | 67, 691, 28, 145, 319 |
67, 691, 28, 5, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 29 x 67 x 691 x 28 x 5 x 11 = 12405744120
Therefore, the lowest common multiple of 402,691,168,870,638 is 12405744120.
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.
402 x 691 x 168 x 870 x 638 = 25903193722560
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.
402 : 1, 2, 3, 6, 67, 134, 201, 402
691 : 1, 691
168 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
870 : 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
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 402,691,168,870,638, is 1.
Now, the common factors can be found like this.
402:2x 3x 67
691:691
168:2x 2x 2x 3x 7
870:2x 3x 5x 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 2x 3x 3x 29 = 2088
Therefore, the value for common factors is 2088.
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 = 25903193722560/(1x2088)
LCM = 25903193722560/2088
LCM = 12405744120
Thus, we can understand that the LCM of 402,691,168,870,638 is 12405744120.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 402, 691, 168, 870, 638?
Answer: LCM of 402, 691, 168, 870, 638 is 12405744120.
2. How to calculate the LCM of 402, 691, 168, 870, 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 402, 691, 168, 870, 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}.