LCM of 456, 645, 671, 342
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 456, 645, 671, 342 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 456, 645, 671, 342. So, keep reading to learn more.
Given numbers are 456,645,671,342
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 456,645,671,342 is 197354520.
Find LCM of 456,645,671,342 with Prime Factorization
| 2 | 456, 645, 671, 342 |
| 3 | 228, 645, 671, 171 |
| 19 | 76, 215, 671, 57 |
| 4, 215, 671, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 19 x 4 x 215 x 671 x 3 = 197354520
Therefore, the lowest common multiple of 456,645,671,342 is 197354520.
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.
456 x 645 x 671 x 342 = 67495245840
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.
456 : 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
645 : 1, 3, 5, 15, 43, 129, 215, 645
671 : 1, 11, 61, 671
342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 456,645,671,342, is 1.
Now, the common factors can be found like this.
456:2x 2x 2x 3x 19
645:3x 5x 43
671:11x 61
342:2x 3x 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 3x 3x 19 = 342
Therefore, the value for common factors is 342.
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 = 67495245840/(1x342)
LCM = 67495245840/342
LCM = 197354520
Thus, we can understand that the LCM of 456,645,671,342 is 197354520.
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FAQs on LCM of 456, 645, 671, 342
1. What is the LCM of 456, 645, 671, 342?
Answer: LCM of 456, 645, 671, 342 is 197354520.
2. How to calculate the LCM of 456, 645, 671, 342?
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 456, 645, 671, 342.
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}.