LCM of 421, 399, 893, 90
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 421, 399, 893, 90 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 421, 399, 893, 90. So, keep reading to learn more.
Given numbers are 421,399,893,90
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 421,399,893,90 is 236850390.
Find LCM of 421,399,893,90 with Prime Factorization
| 3 | 421, 399, 893, 90 |
| 19 | 421, 133, 893, 30 |
| 421, 7, 47, 30 |
Multiply the prime numbers at the bottom and the left side.
3 x 19 x 421 x 7 x 47 x 30 = 236850390
Therefore, the lowest common multiple of 421,399,893,90 is 236850390.
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.
421 x 399 x 893 x 90 = 13500472230
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.
421 : 1, 421
399 : 1, 3, 7, 19, 21, 57, 133, 399
893 : 1, 19, 47, 893
90 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 421,399,893,90, is 1.
Now, the common factors can be found like this.
421:421
399:3x 7x 19
893:19x 47
90:2x 3x 3x 5
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 19 = 57
Therefore, the value for common factors is 57.
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 = 13500472230/(1x57)
LCM = 13500472230/57
LCM = 236850390
Thus, we can understand that the LCM of 421,399,893,90 is 236850390.
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FAQs on LCM of 421, 399, 893, 90
1. What is the LCM of 421, 399, 893, 90?
Answer: LCM of 421, 399, 893, 90 is 236850390.
2. How to calculate the LCM of 421, 399, 893, 90?
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 421, 399, 893, 90.
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}.