LCM of 251, 636, 123, 398, 689
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 251, 636, 123, 398, 689 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 251, 636, 123, 398, 689. So, keep reading to learn more.
Given numbers are 251,636,123,398,689
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 251,636,123,398,689 is 16932111612.
Find LCM of 251,636,123,398,689 with Prime Factorization
| 2 | 251, 636, 123, 398, 689 |
| 3 | 251, 318, 123, 199, 689 |
| 53 | 251, 106, 41, 199, 689 |
| 251, 2, 41, 199, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 53 x 251 x 2 x 41 x 199 x 13 = 16932111612
Therefore, the lowest common multiple of 251,636,123,398,689 is 16932111612.
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.
251 x 636 x 123 x 398 x 689 = 5384411492616
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.
251 : 1, 251
636 : 1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636
123 : 1, 3, 41, 123
398 : 1, 2, 199, 398
689 : 1, 13, 53, 689
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 251,636,123,398,689, is 1.
Now, the common factors can be found like this.
251:251
636:2x 2x 3x 53
123:3x 41
398:2x 199
689:13x 53
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 53 = 318
Therefore, the value for common factors is 318.
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 = 5384411492616/(1x318)
LCM = 5384411492616/318
LCM = 16932111612
Thus, we can understand that the LCM of 251,636,123,398,689 is 16932111612.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 251, 636, 123, 398, 689
1. What is the LCM of 251, 636, 123, 398, 689?
Answer: LCM of 251, 636, 123, 398, 689 is 16932111612.
2. How to calculate the LCM of 251, 636, 123, 398, 689?
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 251, 636, 123, 398, 689.
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}.