Find the LCM of 391, 817, 349, 644 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 391, 817, 349, 644. So, keep reading to learn more.
Given numbers are 391,817,349,644
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 391,817,349,644 is 3121636084.
Find LCM of 391,817,349,644 with Prime Factorization
23 | 391, 817, 349, 644 |
17, 817, 349, 28 |
Multiply the prime numbers at the bottom and the left side.
23 x 17 x 817 x 349 x 28 = 3121636084
Therefore, the lowest common multiple of 391,817,349,644 is 3121636084.
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.
391 x 817 x 349 x 644 = 71797629932
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.
391 : 1, 17, 23, 391
817 : 1, 19, 43, 817
349 : 1, 349
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,817,349,644, is 1.
Now, the common factors can be found like this.
391:17x 23
817:19x 43
349:349
644:2x 2x 7x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
23 = 23
Therefore, the value for common factors is 23.
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 = 71797629932/(1x23)
LCM = 71797629932/23
LCM = 3121636084
Thus, we can understand that the LCM of 391,817,349,644 is 3121636084.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 391, 817, 349, 644?
Answer: LCM of 391, 817, 349, 644 is 3121636084.
2. How to calculate the LCM of 391, 817, 349, 644?
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 391, 817, 349, 644.
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}.