LCM of 720, 741, 676, 321
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 720, 741, 676, 321 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 720, 741, 676, 321. So, keep reading to learn more.
Given numbers are 720,741,676,321
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 720,741,676,321 is 247375440.
Find LCM of 720,741,676,321 with Prime Factorization
| 2 | 720, 741, 676, 321 |
| 2 | 360, 741, 338, 321 |
| 3 | 180, 741, 169, 321 |
| 13 | 60, 247, 169, 107 |
| 60, 19, 13, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 13 x 60 x 19 x 13 x 107 = 247375440
Therefore, the lowest common multiple of 720,741,676,321 is 247375440.
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.
720 x 741 x 676 x 321 = 115771705920
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.
720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
741 : 1, 3, 13, 19, 39, 57, 247, 741
676 : 1, 2, 4, 13, 26, 52, 169, 338, 676
321 : 1, 3, 107, 321
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,741,676,321, is 1.
Now, the common factors can be found like this.
720:2x 2x 2x 2x 3x 3x 5
741:3x 13x 19
676:2x 2x 13x 13
321:3x 107
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 3x 3x 13 = 468
Therefore, the value for common factors is 468.
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 = 115771705920/(1x468)
LCM = 115771705920/468
LCM = 247375440
Thus, we can understand that the LCM of 720,741,676,321 is 247375440.
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FAQs on LCM of 720, 741, 676, 321
1. What is the LCM of 720, 741, 676, 321?
Answer: LCM of 720, 741, 676, 321 is 247375440.
2. How to calculate the LCM of 720, 741, 676, 321?
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 720, 741, 676, 321.
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}.