LCM of 211, 490, 802, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 211, 490, 802, 690 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 211, 490, 802, 690. So, keep reading to learn more.
Given numbers are 211,490,802,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 211,490,802,690 is 2860697910.
Find LCM of 211,490,802,690 with Prime Factorization
| 2 | 211, 490, 802, 690 |
| 5 | 211, 245, 401, 345 |
| 211, 49, 401, 69 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 211 x 49 x 401 x 69 = 2860697910
Therefore, the lowest common multiple of 211,490,802,690 is 2860697910.
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.
211 x 490 x 802 x 690 = 57213958200
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.
211 : 1, 211
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
802 : 1, 2, 401, 802
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 211,490,802,690, is 1.
Now, the common factors can be found like this.
211:211
490:2x 5x 7x 7
802:2x 401
690:2x 3x 5x 23
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 5 = 20
Therefore, the value for common factors is 20.
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 = 57213958200/(1x20)
LCM = 57213958200/20
LCM = 2860697910
Thus, we can understand that the LCM of 211,490,802,690 is 2860697910.
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FAQs on LCM of 211, 490, 802, 690
1. What is the LCM of 211, 490, 802, 690?
Answer: LCM of 211, 490, 802, 690 is 2860697910.
2. How to calculate the LCM of 211, 490, 802, 690?
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 211, 490, 802, 690.
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}.