Find the LCM of 210, 918, 570, 691 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 210, 918, 570, 691. So, keep reading to learn more.
Given numbers are 210,918,570,691
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 210,918,570,691 is 421834770.
Find LCM of 210,918,570,691 with Prime Factorization
2 | 210, 918, 570, 691 |
3 | 105, 459, 285, 691 |
5 | 35, 153, 95, 691 |
7, 153, 19, 691 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 153 x 19 x 691 = 421834770
Therefore, the lowest common multiple of 210,918,570,691 is 421834770.
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.
210 x 918 x 570 x 691 = 75930258600
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.
210 : 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
570 : 1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570
691 : 1, 691
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 210,918,570,691, is 1.
Now, the common factors can be found like this.
210:2x 3x 5x 7
918:2x 3x 3x 3x 17
570:2x 3x 5x 19
691:691
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 3x 3x 5 = 180
Therefore, the value for common factors is 180.
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 = 75930258600/(1x180)
LCM = 75930258600/180
LCM = 421834770
Thus, we can understand that the LCM of 210,918,570,691 is 421834770.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 210, 918, 570, 691?
Answer: LCM of 210, 918, 570, 691 is 421834770.
2. How to calculate the LCM of 210, 918, 570, 691?
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 210, 918, 570, 691.
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}.