Find the LCM of 649, 942, 638, 806, 781 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 649, 942, 638, 806, 781. So, keep reading to learn more.
Given numbers are 649,942,638,806,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 649,942,638,806,781 is 507290807166.
Find LCM of 649,942,638,806,781 with Prime Factorization
2 | 649, 942, 638, 806, 781 |
11 | 649, 471, 319, 403, 781 |
59, 471, 29, 403, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 59 x 471 x 29 x 403 x 71 = 507290807166
Therefore, the lowest common multiple of 649,942,638,806,781 is 507290807166.
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.
649 x 942 x 638 x 806 x 781 = 245528750668344
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.
649 : 1, 11, 59, 649
942 : 1, 2, 3, 6, 157, 314, 471, 942
638 : 1, 2, 11, 22, 29, 58, 319, 638
806 : 1, 2, 13, 26, 31, 62, 403, 806
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 649,942,638,806,781, is 1.
Now, the common factors can be found like this.
649:11x 59
942:2x 3x 157
638:2x 11x 29
806:2x 13x 31
781:11x 71
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 11x 11 = 484
Therefore, the value for common factors is 484.
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 = 245528750668344/(1x484)
LCM = 245528750668344/484
LCM = 507290807166
Thus, we can understand that the LCM of 649,942,638,806,781 is 507290807166.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 649, 942, 638, 806, 781?
Answer: LCM of 649, 942, 638, 806, 781 is 507290807166.
2. How to calculate the LCM of 649, 942, 638, 806, 781?
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 649, 942, 638, 806, 781.
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}.