LCM of 746, 820, 818, 980, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 746, 820, 818, 980, 645 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 746, 820, 818, 980, 645. So, keep reading to learn more.
Given numbers are 746,820,818,980,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 746,820,818,980,645 is 790736493540.
Find LCM of 746,820,818,980,645 with Prime Factorization
| 2 | 746, 820, 818, 980, 645 |
| 2 | 373, 410, 409, 490, 645 |
| 5 | 373, 205, 409, 245, 645 |
| 373, 41, 409, 49, 129 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 373 x 41 x 409 x 49 x 129 = 790736493540
Therefore, the lowest common multiple of 746,820,818,980,645 is 790736493540.
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.
746 x 820 x 818 x 980 x 645 = 316294597416000
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.
746 : 1, 2, 373, 746
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
818 : 1, 2, 409, 818
980 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 746,820,818,980,645, is 1.
Now, the common factors can be found like this.
746:2x 373
820:2x 2x 5x 41
818:2x 409
980:2x 2x 5x 7x 7
645:3x 5x 43
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 5x 5 = 400
Therefore, the value for common factors is 400.
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 = 316294597416000/(1x400)
LCM = 316294597416000/400
LCM = 790736493540
Thus, we can understand that the LCM of 746,820,818,980,645 is 790736493540.
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FAQs on LCM of 746, 820, 818, 980, 645
1. What is the LCM of 746, 820, 818, 980, 645?
Answer: LCM of 746, 820, 818, 980, 645 is 790736493540.
2. How to calculate the LCM of 746, 820, 818, 980, 645?
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 746, 820, 818, 980, 645.
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}.