LCM of 217, 778, 744, 856
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 217, 778, 744, 856 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 217, 778, 744, 856. So, keep reading to learn more.
Given numbers are 217,778,744,856
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 217,778,744,856 is 216772584.
Find LCM of 217,778,744,856 with Prime Factorization
| 2 | 217, 778, 744, 856 |
| 2 | 217, 389, 372, 428 |
| 2 | 217, 389, 186, 214 |
| 31 | 217, 389, 93, 107 |
| 7, 389, 3, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 31 x 7 x 389 x 3 x 107 = 216772584
Therefore, the lowest common multiple of 217,778,744,856 is 216772584.
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.
217 x 778 x 744 x 856 = 107519201664
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.
217 : 1, 7, 31, 217
778 : 1, 2, 389, 778
744 : 1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744
856 : 1, 2, 4, 8, 107, 214, 428, 856
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 217,778,744,856, is 1.
Now, the common factors can be found like this.
217:7x 31
778:2x 389
744:2x 2x 2x 3x 31
856:2x 2x 2x 107
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 2x 31 = 496
Therefore, the value for common factors is 496.
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 = 107519201664/(1x496)
LCM = 107519201664/496
LCM = 216772584
Thus, we can understand that the LCM of 217,778,744,856 is 216772584.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 217, 778, 744, 856
1. What is the LCM of 217, 778, 744, 856?
Answer: LCM of 217, 778, 744, 856 is 216772584.
2. How to calculate the LCM of 217, 778, 744, 856?
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 217, 778, 744, 856.
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}.