LCM of 781, 949, 452, 780
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 781, 949, 452, 780 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 781, 949, 452, 780. So, keep reading to learn more.
Given numbers are 781,949,452,780
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 781,949,452,780 is 5025125820.
Find LCM of 781,949,452,780 with Prime Factorization
| 2 | 781, 949, 452, 780 |
| 2 | 781, 949, 226, 390 |
| 13 | 781, 949, 113, 195 |
| 781, 73, 113, 15 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 13 x 781 x 73 x 113 x 15 = 5025125820
Therefore, the lowest common multiple of 781,949,452,780 is 5025125820.
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.
781 x 949 x 452 x 780 = 261306542640
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.
781 : 1, 11, 71, 781
949 : 1, 13, 73, 949
452 : 1, 2, 4, 113, 226, 452
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,949,452,780, is 1.
Now, the common factors can be found like this.
781:11x 71
949:13x 73
452:2x 2x 113
780:2x 2x 3x 5x 13
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 13 = 52
Therefore, the value for common factors is 52.
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 = 261306542640/(1x52)
LCM = 261306542640/52
LCM = 5025125820
Thus, we can understand that the LCM of 781,949,452,780 is 5025125820.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 781, 949, 452, 780
1. What is the LCM of 781, 949, 452, 780?
Answer: LCM of 781, 949, 452, 780 is 5025125820.
2. How to calculate the LCM of 781, 949, 452, 780?
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 781, 949, 452, 780.
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}.