LCM of 918, 442, 787, 391, 988
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 918, 442, 787, 391, 988 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 918, 442, 787, 391, 988. So, keep reading to learn more.
Given numbers are 918,442,787,391,988
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 918,442,787,391,988 is 8208658692.
Find LCM of 918,442,787,391,988 with Prime Factorization
| 2 | 918, 442, 787, 391, 988 |
| 13 | 459, 221, 787, 391, 494 |
| 17 | 459, 17, 787, 391, 38 |
| 27, 1, 787, 23, 38 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 17 x 27 x 1 x 787 x 23 x 38 = 8208658692
Therefore, the lowest common multiple of 918,442,787,391,988 is 8208658692.
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.
918 x 442 x 787 x 391 x 988 = 123359722823376
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.
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
442 : 1, 2, 13, 17, 26, 34, 221, 442
787 : 1, 787
391 : 1, 17, 23, 391
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 918,442,787,391,988, is 1.
Now, the common factors can be found like this.
918:2x 3x 3x 3x 17
442:2x 13x 17
787:787
391:17x 23
988:2x 2x 13x 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 2x 13x 17x 17 = 15028
Therefore, the value for common factors is 15028.
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 = 123359722823376/(1x15028)
LCM = 123359722823376/15028
LCM = 8208658692
Thus, we can understand that the LCM of 918,442,787,391,988 is 8208658692.
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FAQs on LCM of 918, 442, 787, 391, 988
1. What is the LCM of 918, 442, 787, 391, 988?
Answer: LCM of 918, 442, 787, 391, 988 is 8208658692.
2. How to calculate the LCM of 918, 442, 787, 391, 988?
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 918, 442, 787, 391, 988.
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}.