LCM of 781, 156, 663, 975
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 781, 156, 663, 975 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, 156, 663, 975. So, keep reading to learn more.
Given numbers are 781,156,663,975
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 781,156,663,975 is 51780300.
Find LCM of 781,156,663,975 with Prime Factorization
| 3 | 781, 156, 663, 975 |
| 13 | 781, 52, 221, 325 |
| 781, 4, 17, 25 |
Multiply the prime numbers at the bottom and the left side.
3 x 13 x 781 x 4 x 17 x 25 = 51780300
Therefore, the lowest common multiple of 781,156,663,975 is 51780300.
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 156 x 663 x 975 = 78757836300
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
156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
663 : 1, 3, 13, 17, 39, 51, 221, 663
975 : 1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,156,663,975, is 1.
Now, the common factors can be found like this.
781:11x 71
156:2x 2x 3x 13
663:3x 13x 17
975:3x 5x 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.
3x 3x 13x 13 = 1521
Therefore, the value for common factors is 1521.
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 = 78757836300/(1x1521)
LCM = 78757836300/1521
LCM = 51780300
Thus, we can understand that the LCM of 781,156,663,975 is 51780300.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 781, 156, 663, 975
1. What is the LCM of 781, 156, 663, 975?
Answer: LCM of 781, 156, 663, 975 is 51780300.
2. How to calculate the LCM of 781, 156, 663, 975?
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, 156, 663, 975.
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}.