LCM of 676, 578, 648, 728
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 676, 578, 648, 728 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 676, 578, 648, 728. So, keep reading to learn more.
Given numbers are 676,578,648,728
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 676,578,648,728 is 221542776.
Find LCM of 676,578,648,728 with Prime Factorization
| 2 | 676, 578, 648, 728 |
| 2 | 338, 289, 324, 364 |
| 2 | 169, 289, 162, 182 |
| 13 | 169, 289, 81, 91 |
| 13, 289, 81, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 13 x 13 x 289 x 81 x 7 = 221542776
Therefore, the lowest common multiple of 676,578,648,728 is 221542776.
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.
676 x 578 x 648 x 728 = 184323589632
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.
676 : 1, 2, 4, 13, 26, 52, 169, 338, 676
578 : 1, 2, 17, 34, 289, 578
648 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 676,578,648,728, is 2.
Now, the common factors can be found like this.
676:2x 2x 13x 13
578:2x 17x 17
648:2x 2x 2x 3x 3x 3x 3
728:2x 2x 2x 7x 13
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 13 = 416
Therefore, the value for common factors is 416.
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 = 184323589632/(2x416)
LCM = 184323589632/832
LCM = 221542776
Thus, we can understand that the LCM of 676,578,648,728 is 221542776.
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FAQs on LCM of 676, 578, 648, 728
1. What is the LCM of 676, 578, 648, 728?
Answer: LCM of 676, 578, 648, 728 is 221542776.
2. How to calculate the LCM of 676, 578, 648, 728?
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 676, 578, 648, 728.
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}.