LCM of 902, 620, 396, 398
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 902, 620, 396, 398 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 902, 620, 396, 398. So, keep reading to learn more.
Given numbers are 902,620,396,398
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 902,620,396,398 is 500799420.
Find LCM of 902,620,396,398 with Prime Factorization
| 2 | 902, 620, 396, 398 |
| 2 | 451, 310, 198, 199 |
| 11 | 451, 155, 99, 199 |
| 41, 155, 9, 199 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 11 x 41 x 155 x 9 x 199 = 500799420
Therefore, the lowest common multiple of 902,620,396,398 is 500799420.
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.
902 x 620 x 396 x 398 = 88140697920
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.
902 : 1, 2, 11, 22, 41, 82, 451, 902
620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
396 : 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
398 : 1, 2, 199, 398
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 902,620,396,398, is 2.
Now, the common factors can be found like this.
902:2x 11x 41
620:2x 2x 5x 31
396:2x 2x 3x 3x 11
398:2x 199
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 11 = 88
Therefore, the value for common factors is 88.
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 = 88140697920/(2x88)
LCM = 88140697920/176
LCM = 500799420
Thus, we can understand that the LCM of 902,620,396,398 is 500799420.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 902, 620, 396, 398
1. What is the LCM of 902, 620, 396, 398?
Answer: LCM of 902, 620, 396, 398 is 500799420.
2. How to calculate the LCM of 902, 620, 396, 398?
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 902, 620, 396, 398.
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}.