LCM of 897, 391, 421, 143
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 897, 391, 421, 143 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 897, 391, 421, 143. So, keep reading to learn more.
Given numbers are 897,391,421,143
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 897,391,421,143 is 70618119.
Find LCM of 897,391,421,143 with Prime Factorization
| 13 | 897, 391, 421, 143 |
| 23 | 69, 391, 421, 11 |
| 3, 17, 421, 11 |
Multiply the prime numbers at the bottom and the left side.
13 x 23 x 3 x 17 x 421 x 11 = 70618119
Therefore, the lowest common multiple of 897,391,421,143 is 70618119.
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.
897 x 391 x 421 x 143 = 21114817581
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.
897 : 1, 3, 13, 23, 39, 69, 299, 897
391 : 1, 17, 23, 391
421 : 1, 421
143 : 1, 11, 13, 143
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 897,391,421,143, is 1.
Now, the common factors can be found like this.
897:3x 13x 23
391:17x 23
421:421
143:11x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
13x 23 = 299
Therefore, the value for common factors is 299.
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 = 21114817581/(1x299)
LCM = 21114817581/299
LCM = 70618119
Thus, we can understand that the LCM of 897,391,421,143 is 70618119.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 897, 391, 421, 143
1. What is the LCM of 897, 391, 421, 143?
Answer: LCM of 897, 391, 421, 143 is 70618119.
2. How to calculate the LCM of 897, 391, 421, 143?
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 897, 391, 421, 143.
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}.