LCM of 231, 140, 391, 971, 946
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 231, 140, 391, 971, 946 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 231, 140, 391, 971, 946. So, keep reading to learn more.
Given numbers are 231,140,391,971,946
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 231,140,391,971,946 is 75423454260.
Find LCM of 231,140,391,971,946 with Prime Factorization
| 2 | 231, 140, 391, 971, 946 |
| 7 | 231, 70, 391, 971, 473 |
| 11 | 33, 10, 391, 971, 473 |
| 3, 10, 391, 971, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 11 x 3 x 10 x 391 x 971 x 43 = 75423454260
Therefore, the lowest common multiple of 231,140,391,971,946 is 75423454260.
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.
231 x 140 x 391 x 971 x 946 = 11615211956040
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.
231 : 1, 3, 7, 11, 21, 33, 77, 231
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
391 : 1, 17, 23, 391
971 : 1, 971
946 : 1, 2, 11, 22, 43, 86, 473, 946
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 231,140,391,971,946, is 1.
Now, the common factors can be found like this.
231:3x 7x 11
140:2x 2x 5x 7
391:17x 23
971:971
946:2x 11x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 7x 11 = 154
Therefore, the value for common factors is 154.
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 = 11615211956040/(1x154)
LCM = 11615211956040/154
LCM = 75423454260
Thus, we can understand that the LCM of 231,140,391,971,946 is 75423454260.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 231, 140, 391, 971, 946
1. What is the LCM of 231, 140, 391, 971, 946?
Answer: LCM of 231, 140, 391, 971, 946 is 75423454260.
2. How to calculate the LCM of 231, 140, 391, 971, 946?
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 231, 140, 391, 971, 946.
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}.