LCM of 242, 378, 988, 391, 978
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 242, 378, 988, 391, 978 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 242, 378, 988, 391, 978. So, keep reading to learn more.
Given numbers are 242,378,988,391,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 242,378,988,391,978 is 1440019857276.
Find LCM of 242,378,988,391,978 with Prime Factorization
| 2 | 242, 378, 988, 391, 978 |
| 3 | 121, 189, 494, 391, 489 |
| 121, 63, 494, 391, 163 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 121 x 63 x 494 x 391 x 163 = 1440019857276
Therefore, the lowest common multiple of 242,378,988,391,978 is 1440019857276.
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.
242 x 378 x 988 x 391 x 978 = 34560476574624
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.
242 : 1, 2, 11, 22, 121, 242
378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
391 : 1, 17, 23, 391
978 : 1, 2, 3, 6, 163, 326, 489, 978
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 242,378,988,391,978, is 1.
Now, the common factors can be found like this.
242:2x 11x 11
378:2x 3x 3x 3x 7
988:2x 2x 13x 19
391:17x 23
978:2x 3x 163
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 2x 3 = 24
Therefore, the value for common factors is 24.
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 = 34560476574624/(1x24)
LCM = 34560476574624/24
LCM = 1440019857276
Thus, we can understand that the LCM of 242,378,988,391,978 is 1440019857276.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 242, 378, 988, 391, 978
1. What is the LCM of 242, 378, 988, 391, 978?
Answer: LCM of 242, 378, 988, 391, 978 is 1440019857276.
2. How to calculate the LCM of 242, 378, 988, 391, 978?
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 242, 378, 988, 391, 978.
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}.