Find the LCM of 689, 728, 286, 611 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 689, 728, 286, 611. So, keep reading to learn more.
Given numbers are 689,728,286,611
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 689,728,286,611 is 19947928.
Find LCM of 689,728,286,611 with Prime Factorization
2 | 689, 728, 286, 611 |
13 | 689, 364, 143, 611 |
53, 28, 11, 47 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 53 x 28 x 11 x 47 = 19947928
Therefore, the lowest common multiple of 689,728,286,611 is 19947928.
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.
689 x 728 x 286 x 611 = 87651195632
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.
689 : 1, 13, 53, 689
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
286 : 1, 2, 11, 13, 22, 26, 143, 286
611 : 1, 13, 47, 611
13 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,728,286,611, is 13.
Now, the common factors can be found like this.
689:13x 53
728:2x 2x 2x 7x 13
286:2x 11x 13
611:13x 47
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 13x 13 = 338
Therefore, the value for common factors is 338.
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 = 87651195632/(13x338)
LCM = 87651195632/4394
LCM = 19947928
Thus, we can understand that the LCM of 689,728,286,611 is 19947928.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 689, 728, 286, 611?
Answer: LCM of 689, 728, 286, 611 is 19947928.
2. How to calculate the LCM of 689, 728, 286, 611?
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 689, 728, 286, 611.
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}.