LCM of 791, 429, 572, 981
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 791, 429, 572, 981 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 791, 429, 572, 981. So, keep reading to learn more.
Given numbers are 791,429,572,981
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 791,429,572,981 is 443855412.
Find LCM of 791,429,572,981 with Prime Factorization
| 3 | 791, 429, 572, 981 |
| 11 | 791, 143, 572, 327 |
| 13 | 791, 13, 52, 327 |
| 791, 1, 4, 327 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 13 x 791 x 1 x 4 x 327 = 443855412
Therefore, the lowest common multiple of 791,429,572,981 is 443855412.
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.
791 x 429 x 572 x 981 = 190413971748
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.
791 : 1, 7, 113, 791
429 : 1, 3, 11, 13, 33, 39, 143, 429
572 : 1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572
981 : 1, 3, 9, 109, 327, 981
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 791,429,572,981, is 1.
Now, the common factors can be found like this.
791:7x 113
429:3x 11x 13
572:2x 2x 11x 13
981:3x 3x 109
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 11x 13 = 429
Therefore, the value for common factors is 429.
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 = 190413971748/(1x429)
LCM = 190413971748/429
LCM = 443855412
Thus, we can understand that the LCM of 791,429,572,981 is 443855412.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 791, 429, 572, 981
1. What is the LCM of 791, 429, 572, 981?
Answer: LCM of 791, 429, 572, 981 is 443855412.
2. How to calculate the LCM of 791, 429, 572, 981?
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 791, 429, 572, 981.
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}.