LCM of 681, 437, 128, 456
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 681, 437, 128, 456 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 681, 437, 128, 456. So, keep reading to learn more.
Given numbers are 681,437,128,456
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 681,437,128,456 is 38092416.
Find LCM of 681,437,128,456 with Prime Factorization
| 2 | 681, 437, 128, 456 |
| 2 | 681, 437, 64, 228 |
| 2 | 681, 437, 32, 114 |
| 3 | 681, 437, 16, 57 |
| 19 | 227, 437, 16, 19 |
| 227, 23, 16, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 19 x 227 x 23 x 16 x 1 = 38092416
Therefore, the lowest common multiple of 681,437,128,456 is 38092416.
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.
681 x 437 x 128 x 456 = 17370141696
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.
681 : 1, 3, 227, 681
437 : 1, 19, 23, 437
128 : 1, 2, 4, 8, 16, 32, 64, 128
456 : 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 681,437,128,456, is 1.
Now, the common factors can be found like this.
681:3x 227
437:19x 23
128:2x 2x 2x 2x 2x 2x 2
456:2x 2x 2x 3x 19
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 3x 19 = 456
Therefore, the value for common factors is 456.
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 = 17370141696/(1x456)
LCM = 17370141696/456
LCM = 38092416
Thus, we can understand that the LCM of 681,437,128,456 is 38092416.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 681, 437, 128, 456
1. What is the LCM of 681, 437, 128, 456?
Answer: LCM of 681, 437, 128, 456 is 38092416.
2. How to calculate the LCM of 681, 437, 128, 456?
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 681, 437, 128, 456.
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}.