LCM of 705, 887, 640, 690, 451
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 705, 887, 640, 690, 451 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 705, 887, 640, 690, 451. So, keep reading to learn more.
Given numbers are 705,887,640,690,451
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 705,887,640,690,451 is 830284794240.
Find LCM of 705,887,640,690,451 with Prime Factorization
| 2 | 705, 887, 640, 690, 451 |
| 3 | 705, 887, 320, 345, 451 |
| 5 | 235, 887, 320, 115, 451 |
| 47, 887, 64, 23, 451 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 47 x 887 x 64 x 23 x 451 = 830284794240
Therefore, the lowest common multiple of 705,887,640,690,451 is 830284794240.
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.
705 x 887 x 640 x 690 x 451 = 124542719136000
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.
705 : 1, 3, 5, 15, 47, 141, 235, 705
887 : 1, 887
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
451 : 1, 11, 41, 451
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 705,887,640,690,451, is 1.
Now, the common factors can be found like this.
705:3x 5x 47
887:887
640:2x 2x 2x 2x 2x 2x 2x 5
690:2x 3x 5x 23
451:11x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 5x 5 = 150
Therefore, the value for common factors is 150.
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 = 124542719136000/(1x150)
LCM = 124542719136000/150
LCM = 830284794240
Thus, we can understand that the LCM of 705,887,640,690,451 is 830284794240.
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FAQs on LCM of 705, 887, 640, 690, 451
1. What is the LCM of 705, 887, 640, 690, 451?
Answer: LCM of 705, 887, 640, 690, 451 is 830284794240.
2. How to calculate the LCM of 705, 887, 640, 690, 451?
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 705, 887, 640, 690, 451.
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}.