LCM of 440, 828, 418, 781
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 440, 828, 418, 781 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 440, 828, 418, 781. So, keep reading to learn more.
Given numbers are 440,828,418,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 440,828,418,781 is 122866920.
Find LCM of 440,828,418,781 with Prime Factorization
| 2 | 440, 828, 418, 781 |
| 2 | 220, 414, 209, 781 |
| 11 | 110, 207, 209, 781 |
| 10, 207, 19, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 11 x 10 x 207 x 19 x 71 = 122866920
Therefore, the lowest common multiple of 440,828,418,781 is 122866920.
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.
440 x 828 x 418 x 781 = 118935178560
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.
440 : 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440
828 : 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
418 : 1, 2, 11, 19, 22, 38, 209, 418
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 440,828,418,781, is 1.
Now, the common factors can be found like this.
440:2x 2x 2x 5x 11
828:2x 2x 3x 3x 23
418:2x 11x 19
781:11x 71
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 11x 11 = 968
Therefore, the value for common factors is 968.
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 = 118935178560/(1x968)
LCM = 118935178560/968
LCM = 122866920
Thus, we can understand that the LCM of 440,828,418,781 is 122866920.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 440, 828, 418, 781
1. What is the LCM of 440, 828, 418, 781?
Answer: LCM of 440, 828, 418, 781 is 122866920.
2. How to calculate the LCM of 440, 828, 418, 781?
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 440, 828, 418, 781.
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}.