LCM of 655, 420, 722, 432, 308
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 655, 420, 722, 432, 308 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 655, 420, 722, 432, 308. So, keep reading to learn more.
Given numbers are 655,420,722,432,308
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 655,420,722,432,308 is 7865439120.
Find LCM of 655,420,722,432,308 with Prime Factorization
| 2 | 655, 420, 722, 432, 308 |
| 2 | 655, 210, 361, 216, 154 |
| 3 | 655, 105, 361, 108, 77 |
| 5 | 655, 35, 361, 36, 77 |
| 7 | 131, 7, 361, 36, 77 |
| 131, 1, 361, 36, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 131 x 1 x 361 x 36 x 11 = 7865439120
Therefore, the lowest common multiple of 655,420,722,432,308 is 7865439120.
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.
655 x 420 x 722 x 432 x 308 = 26427875443200
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.
655 : 1, 5, 131, 655
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
722 : 1, 2, 19, 38, 361, 722
432 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432
308 : 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 655,420,722,432,308, is 1.
Now, the common factors can be found like this.
655:5x 131
420:2x 2x 3x 5x 7
722:2x 19x 19
432:2x 2x 2x 2x 3x 3x 3
308:2x 2x 7x 11
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 2x 3x 5x 7 = 3360
Therefore, the value for common factors is 3360.
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 = 26427875443200/(1x3360)
LCM = 26427875443200/3360
LCM = 7865439120
Thus, we can understand that the LCM of 655,420,722,432,308 is 7865439120.
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FAQs on LCM of 655, 420, 722, 432, 308
1. What is the LCM of 655, 420, 722, 432, 308?
Answer: LCM of 655, 420, 722, 432, 308 is 7865439120.
2. How to calculate the LCM of 655, 420, 722, 432, 308?
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 655, 420, 722, 432, 308.
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}.