LCM of 399, 916, 420, 884
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 399, 916, 420, 884 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 399, 916, 420, 884. So, keep reading to learn more.
Given numbers are 399,916,420,884
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 399,916,420,884 is 403859820.
Find LCM of 399,916,420,884 with Prime Factorization
| 2 | 399, 916, 420, 884 |
| 2 | 399, 458, 210, 442 |
| 3 | 399, 229, 105, 221 |
| 7 | 133, 229, 35, 221 |
| 19, 229, 5, 221 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 19 x 229 x 5 x 221 = 403859820
Therefore, the lowest common multiple of 399,916,420,884 is 403859820.
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.
399 x 916 x 420 x 884 = 135696899520
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.
399 : 1, 3, 7, 19, 21, 57, 133, 399
916 : 1, 2, 4, 229, 458, 916
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
884 : 1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 399,916,420,884, is 1.
Now, the common factors can be found like this.
399:3x 7x 19
916:2x 2x 229
420:2x 2x 3x 5x 7
884:2x 2x 13x 17
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 2x 3x 7 = 336
Therefore, the value for common factors is 336.
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 = 135696899520/(1x336)
LCM = 135696899520/336
LCM = 403859820
Thus, we can understand that the LCM of 399,916,420,884 is 403859820.
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FAQs on LCM of 399, 916, 420, 884
1. What is the LCM of 399, 916, 420, 884?
Answer: LCM of 399, 916, 420, 884 is 403859820.
2. How to calculate the LCM of 399, 916, 420, 884?
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 399, 916, 420, 884.
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}.