LCM of 880, 962, 638, 420
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 880, 962, 638, 420 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 880, 962, 638, 420. So, keep reading to learn more.
Given numbers are 880,962,638,420
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 880,962,638,420 is 257777520.
Find LCM of 880,962,638,420 with Prime Factorization
| 2 | 880, 962, 638, 420 |
| 2 | 440, 481, 319, 210 |
| 5 | 220, 481, 319, 105 |
| 11 | 44, 481, 319, 21 |
| 4, 481, 29, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 11 x 4 x 481 x 29 x 21 = 257777520
Therefore, the lowest common multiple of 880,962,638,420 is 257777520.
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.
880 x 962 x 638 x 420 = 226844217600
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.
880 : 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880
962 : 1, 2, 13, 26, 37, 74, 481, 962
638 : 1, 2, 11, 22, 29, 58, 319, 638
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
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 880,962,638,420, is 2.
Now, the common factors can be found like this.
880:2x 2x 2x 2x 5x 11
962:2x 13x 37
638:2x 11x 29
420:2x 2x 3x 5x 7
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 5x 11 = 440
Therefore, the value for common factors is 440.
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 = 226844217600/(2x440)
LCM = 226844217600/880
LCM = 257777520
Thus, we can understand that the LCM of 880,962,638,420 is 257777520.
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FAQs on LCM of 880, 962, 638, 420
1. What is the LCM of 880, 962, 638, 420?
Answer: LCM of 880, 962, 638, 420 is 257777520.
2. How to calculate the LCM of 880, 962, 638, 420?
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 880, 962, 638, 420.
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}.