LCM of 391, 736, 154, 209
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 391, 736, 154, 209 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 391, 736, 154, 209. So, keep reading to learn more.
Given numbers are 391,736,154,209
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 391,736,154,209 is 18305056.
Find LCM of 391,736,154,209 with Prime Factorization
| 2 | 391, 736, 154, 209 |
| 11 | 391, 368, 77, 209 |
| 23 | 391, 368, 7, 19 |
| 17, 16, 7, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 23 x 17 x 16 x 7 x 19 = 18305056
Therefore, the lowest common multiple of 391,736,154,209 is 18305056.
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.
391 x 736 x 154 x 209 = 9262358336
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.
391 : 1, 17, 23, 391
736 : 1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 736
154 : 1, 2, 7, 11, 14, 22, 77, 154
209 : 1, 11, 19, 209
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,736,154,209, is 1.
Now, the common factors can be found like this.
391:17x 23
736:2x 2x 2x 2x 2x 23
154:2x 7x 11
209:11x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11x 23 = 506
Therefore, the value for common factors is 506.
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 = 9262358336/(1x506)
LCM = 9262358336/506
LCM = 18305056
Thus, we can understand that the LCM of 391,736,154,209 is 18305056.
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FAQs on LCM of 391, 736, 154, 209
1. What is the LCM of 391, 736, 154, 209?
Answer: LCM of 391, 736, 154, 209 is 18305056.
2. How to calculate the LCM of 391, 736, 154, 209?
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 391, 736, 154, 209.
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}.