LCM of 971, 968, 990, 545, 905
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 971, 968, 990, 545, 905 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 971, 968, 990, 545, 905. So, keep reading to learn more.
Given numbers are 971,968,990,545,905
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 971,968,990,545,905 is 834472778040.
Find LCM of 971,968,990,545,905 with Prime Factorization
| 2 | 971, 968, 990, 545, 905 |
| 5 | 971, 484, 495, 545, 905 |
| 11 | 971, 484, 99, 109, 181 |
| 971, 44, 9, 109, 181 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 11 x 971 x 44 x 9 x 109 x 181 = 834472778040
Therefore, the lowest common multiple of 971,968,990,545,905 is 834472778040.
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.
971 x 968 x 990 x 545 x 905 = 458960027922000
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.
971 : 1, 971
968 : 1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968
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
545 : 1, 5, 109, 545
905 : 1, 5, 181, 905
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 971,968,990,545,905, is 1.
Now, the common factors can be found like this.
971:971
968:2x 2x 2x 11x 11
990:2x 3x 3x 5x 11
545:5x 109
905:5x 181
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 5x 11 = 550
Therefore, the value for common factors is 550.
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 = 458960027922000/(1x550)
LCM = 458960027922000/550
LCM = 834472778040
Thus, we can understand that the LCM of 971,968,990,545,905 is 834472778040.
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FAQs on LCM of 971, 968, 990, 545, 905
1. What is the LCM of 971, 968, 990, 545, 905?
Answer: LCM of 971, 968, 990, 545, 905 is 834472778040.
2. How to calculate the LCM of 971, 968, 990, 545, 905?
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 971, 968, 990, 545, 905.
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}.