LCM of 398, 962, 974, 561, 381
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 398, 962, 974, 561, 381 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 398, 962, 974, 561, 381. So, keep reading to learn more.
Given numbers are 398,962,974,561,381
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 398,962,974,561,381 is 6642379611582.
Find LCM of 398,962,974,561,381 with Prime Factorization
| 2 | 398, 962, 974, 561, 381 |
| 3 | 199, 481, 487, 561, 381 |
| 199, 481, 487, 187, 127 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 199 x 481 x 487 x 187 x 127 = 6642379611582
Therefore, the lowest common multiple of 398,962,974,561,381 is 6642379611582.
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.
398 x 962 x 974 x 561 x 381 = 79708555338984
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.
398 : 1, 2, 199, 398
962 : 1, 2, 13, 26, 37, 74, 481, 962
974 : 1, 2, 487, 974
561 : 1, 3, 11, 17, 33, 51, 187, 561
381 : 1, 3, 127, 381
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 398,962,974,561,381, is 1.
Now, the common factors can be found like this.
398:2x 199
962:2x 13x 37
974:2x 487
561:3x 11x 17
381:3x 127
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 3 = 12
Therefore, the value for common factors is 12.
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 = 79708555338984/(1x12)
LCM = 79708555338984/12
LCM = 6642379611582
Thus, we can understand that the LCM of 398,962,974,561,381 is 6642379611582.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 398, 962, 974, 561, 381
1. What is the LCM of 398, 962, 974, 561, 381?
Answer: LCM of 398, 962, 974, 561, 381 is 6642379611582.
2. How to calculate the LCM of 398, 962, 974, 561, 381?
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 398, 962, 974, 561, 381.
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}.