LCM of 834, 420, 990, 987, 154
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 834, 420, 990, 987, 154 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 834, 420, 990, 987, 154. So, keep reading to learn more.
Given numbers are 834,420,990,987,154
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 834,420,990,987,154 is 90547380.
Find LCM of 834,420,990,987,154 with Prime Factorization
| 2 | 834, 420, 990, 987, 154 |
| 3 | 417, 210, 495, 987, 77 |
| 5 | 139, 70, 165, 329, 77 |
| 7 | 139, 14, 33, 329, 77 |
| 11 | 139, 2, 33, 47, 11 |
| 139, 2, 3, 47, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 11 x 139 x 2 x 3 x 47 x 1 = 90547380
Therefore, the lowest common multiple of 834,420,990,987,154 is 90547380.
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.
834 x 420 x 990 x 987 x 154 = 52709440845600
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.
834 : 1, 2, 3, 6, 139, 278, 417, 834
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
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
987 : 1, 3, 7, 21, 47, 141, 329, 987
154 : 1, 2, 7, 11, 14, 22, 77, 154
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 834,420,990,987,154, is 1.
Now, the common factors can be found like this.
834:2x 3x 139
420:2x 2x 3x 5x 7
990:2x 3x 3x 5x 11
987:3x 7x 47
154:2x 7x 11
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 3x 3x 3x 5x 7x 7x 11 = 582120
Therefore, the value for common factors is 582120.
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 = 52709440845600/(1x582120)
LCM = 52709440845600/582120
LCM = 90547380
Thus, we can understand that the LCM of 834,420,990,987,154 is 90547380.
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FAQs on LCM of 834, 420, 990, 987, 154
1. What is the LCM of 834, 420, 990, 987, 154?
Answer: LCM of 834, 420, 990, 987, 154 is 90547380.
2. How to calculate the LCM of 834, 420, 990, 987, 154?
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 834, 420, 990, 987, 154.
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}.