LCM of 931, 981, 252, 820
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 931, 981, 252, 820 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 931, 981, 252, 820. So, keep reading to learn more.
Given numbers are 931,981,252,820
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 931,981,252,820 is 748915020.
Find LCM of 931,981,252,820 with Prime Factorization
| 2 | 931, 981, 252, 820 |
| 2 | 931, 981, 126, 410 |
| 3 | 931, 981, 63, 205 |
| 3 | 931, 327, 21, 205 |
| 7 | 931, 109, 7, 205 |
| 133, 109, 1, 205 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 7 x 133 x 109 x 1 x 205 = 748915020
Therefore, the lowest common multiple of 931,981,252,820 is 748915020.
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.
931 x 981 x 252 x 820 = 188726585040
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.
931 : 1, 7, 19, 49, 133, 931
981 : 1, 3, 9, 109, 327, 981
252 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 931,981,252,820, is 1.
Now, the common factors can be found like this.
931:7x 7x 19
981:3x 3x 109
252:2x 2x 3x 3x 7
820:2x 2x 5x 41
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 3x 3x 7 = 252
Therefore, the value for common factors is 252.
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 = 188726585040/(1x252)
LCM = 188726585040/252
LCM = 748915020
Thus, we can understand that the LCM of 931,981,252,820 is 748915020.
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FAQs on LCM of 931, 981, 252, 820
1. What is the LCM of 931, 981, 252, 820?
Answer: LCM of 931, 981, 252, 820 is 748915020.
2. How to calculate the LCM of 931, 981, 252, 820?
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 931, 981, 252, 820.
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}.