LCM of 257, 247, 836, 384, 687
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 257, 247, 836, 384, 687 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 257, 247, 836, 384, 687. So, keep reading to learn more.
Given numbers are 257,247,836,384,687
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 257,247,836,384,687 is 61402982784.
Find LCM of 257,247,836,384,687 with Prime Factorization
| 2 | 257, 247, 836, 384, 687 |
| 2 | 257, 247, 418, 192, 687 |
| 3 | 257, 247, 209, 96, 687 |
| 19 | 257, 247, 209, 32, 229 |
| 257, 13, 11, 32, 229 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 19 x 257 x 13 x 11 x 32 x 229 = 61402982784
Therefore, the lowest common multiple of 257,247,836,384,687 is 61402982784.
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.
257 x 247 x 836 x 384 x 687 = 13999880074752
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.
257 : 1, 257
247 : 1, 13, 19, 247
836 : 1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836
384 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384
687 : 1, 3, 229, 687
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 257,247,836,384,687, is 1.
Now, the common factors can be found like this.
257:257
247:13x 19
836:2x 2x 11x 19
384:2x 2x 2x 2x 2x 2x 2x 3
687:3x 229
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 3x 19 = 228
Therefore, the value for common factors is 228.
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 = 13999880074752/(1x228)
LCM = 13999880074752/228
LCM = 61402982784
Thus, we can understand that the LCM of 257,247,836,384,687 is 61402982784.
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FAQs on LCM of 257, 247, 836, 384, 687
1. What is the LCM of 257, 247, 836, 384, 687?
Answer: LCM of 257, 247, 836, 384, 687 is 61402982784.
2. How to calculate the LCM of 257, 247, 836, 384, 687?
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 257, 247, 836, 384, 687.
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}.