LCM of 647, 753, 639, 251
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 647, 753, 639, 251 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 647, 753, 639, 251. So, keep reading to learn more.
Given numbers are 647,753,639,251
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 647,753,639,251 is 103771683.
Find LCM of 647,753,639,251 with Prime Factorization
| 3 | 647, 753, 639, 251 |
| 251 | 647, 251, 213, 251 |
| 647, 1, 213, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 251 x 647 x 1 x 213 x 1 = 103771683
Therefore, the lowest common multiple of 647,753,639,251 is 103771683.
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.
647 x 753 x 639 x 251 = 78140077299
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.
647 : 1, 647
753 : 1, 3, 251, 753
639 : 1, 3, 9, 71, 213, 639
251 : 1, 251
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 647,753,639,251, is 1.
Now, the common factors can be found like this.
647:647
753:3x 251
639:3x 3x 71
251:251
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 251 = 753
Therefore, the value for common factors is 753.
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 = 78140077299/(1x753)
LCM = 78140077299/753
LCM = 103771683
Thus, we can understand that the LCM of 647,753,639,251 is 103771683.
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FAQs on LCM of 647, 753, 639, 251
1. What is the LCM of 647, 753, 639, 251?
Answer: LCM of 647, 753, 639, 251 is 103771683.
2. How to calculate the LCM of 647, 753, 639, 251?
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 647, 753, 639, 251.
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}.