LCM of 322, 390, 286, 210
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 322, 390, 286, 210 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 322, 390, 286, 210. So, keep reading to learn more.
Given numbers are 322,390,286,210
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 322,390,286,210 is 690690.
Find LCM of 322,390,286,210 with Prime Factorization
| 2 | 322, 390, 286, 210 |
| 3 | 161, 195, 143, 105 |
| 5 | 161, 65, 143, 35 |
| 7 | 161, 13, 143, 7 |
| 13 | 23, 13, 143, 1 |
| 23, 1, 11, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 13 x 23 x 1 x 11 x 1 = 690690
Therefore, the lowest common multiple of 322,390,286,210 is 690690.
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.
322 x 390 x 286 x 210 = 7542334800
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.
322 : 1, 2, 7, 14, 23, 46, 161, 322
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
286 : 1, 2, 11, 13, 22, 26, 143, 286
210 : 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 322,390,286,210, is 2.
Now, the common factors can be found like this.
322:2x 7x 23
390:2x 3x 5x 13
286:2x 11x 13
210:2x 3x 5x 7
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 5x 7x 13 = 5460
Therefore, the value for common factors is 5460.
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 = 7542334800/(2x5460)
LCM = 7542334800/10920
LCM = 690690
Thus, we can understand that the LCM of 322,390,286,210 is 690690.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 322, 390, 286, 210
1. What is the LCM of 322, 390, 286, 210?
Answer: LCM of 322, 390, 286, 210 is 690690.
2. How to calculate the LCM of 322, 390, 286, 210?
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 322, 390, 286, 210.
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}.