LCM of 722, 418, 442, 987
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 722, 418, 442, 987 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 722, 418, 442, 987. So, keep reading to learn more.
Given numbers are 722,418,442,987
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 722,418,442,987 is 1732364634.
Find LCM of 722,418,442,987 with Prime Factorization
| 2 | 722, 418, 442, 987 |
| 19 | 361, 209, 221, 987 |
| 19, 11, 221, 987 |
Multiply the prime numbers at the bottom and the left side.
2 x 19 x 19 x 11 x 221 x 987 = 1732364634
Therefore, the lowest common multiple of 722,418,442,987 is 1732364634.
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.
722 x 418 x 442 x 987 = 131659712184
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.
722 : 1, 2, 19, 38, 361, 722
418 : 1, 2, 11, 19, 22, 38, 209, 418
442 : 1, 2, 13, 17, 26, 34, 221, 442
987 : 1, 3, 7, 21, 47, 141, 329, 987
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 722,418,442,987, is 1.
Now, the common factors can be found like this.
722:2x 19x 19
418:2x 11x 19
442:2x 13x 17
987:3x 7x 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 2x 19 = 76
Therefore, the value for common factors is 76.
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 = 131659712184/(1x76)
LCM = 131659712184/76
LCM = 1732364634
Thus, we can understand that the LCM of 722,418,442,987 is 1732364634.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 722, 418, 442, 987
1. What is the LCM of 722, 418, 442, 987?
Answer: LCM of 722, 418, 442, 987 is 1732364634.
2. How to calculate the LCM of 722, 418, 442, 987?
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 722, 418, 442, 987.
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}.