Find the LCM of 820, 421, 870, 723 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 820, 421, 870, 723. So, keep reading to learn more.
Given numbers are 820,421,870,723
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 820,421,870,723 is 7238227740.
Find LCM of 820,421,870,723 with Prime Factorization
2 | 820, 421, 870, 723 |
3 | 410, 421, 435, 723 |
5 | 410, 421, 145, 241 |
82, 421, 29, 241 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 82 x 421 x 29 x 241 = 7238227740
Therefore, the lowest common multiple of 820,421,870,723 is 7238227740.
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.
820 x 421 x 870 x 723 = 217146832200
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.
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
421 : 1, 421
870 : 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
723 : 1, 3, 241, 723
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 820,421,870,723, is 1.
Now, the common factors can be found like this.
820:2x 2x 5x 41
421:421
870:2x 3x 5x 29
723:3x 241
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 5 = 30
Therefore, the value for common factors is 30.
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 = 217146832200/(1x30)
LCM = 217146832200/30
LCM = 7238227740
Thus, we can understand that the LCM of 820,421,870,723 is 7238227740.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 820, 421, 870, 723?
Answer: LCM of 820, 421, 870, 723 is 7238227740.
2. How to calculate the LCM of 820, 421, 870, 723?
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 820, 421, 870, 723.
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}.