LCM of 920, 568, 781, 90
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 920, 568, 781, 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 920, 568, 781, 90. So, keep reading to learn more.
Given numbers are 920,568,781,90
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 920,568,781,90 is 6466680.
Find LCM of 920,568,781,90 with Prime Factorization
| 2 | 920, 568, 781, 90 |
| 2 | 460, 284, 781, 45 |
| 2 | 230, 142, 781, 45 |
| 5 | 115, 71, 781, 45 |
| 71 | 23, 71, 781, 9 |
| 23, 1, 11, 9 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 5 x 71 x 23 x 1 x 11 x 9 = 6466680
Therefore, the lowest common multiple of 920,568,781,90 is 6466680.
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.
920 x 568 x 781 x 90 = 36730742400
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.
920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
568 : 1, 2, 4, 8, 71, 142, 284, 568
781 : 1, 11, 71, 781
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 920,568,781,90, is 1.
Now, the common factors can be found like this.
920:2x 2x 2x 5x 23
568:2x 2x 2x 71
781:11x 71
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.
2x 2x 2x 2x 5x 71 = 5680
Therefore, the value for common factors is 5680.
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 = 36730742400/(1x5680)
LCM = 36730742400/5680
LCM = 6466680
Thus, we can understand that the LCM of 920,568,781,90 is 6466680.
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FAQs on LCM of 920, 568, 781, 90
1. What is the LCM of 920, 568, 781, 90?
Answer: LCM of 920, 568, 781, 90 is 6466680.
2. How to calculate the LCM of 920, 568, 781, 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 920, 568, 781, 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}.