LCM of 989, 129, 221, 129
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 989, 129, 221, 129 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 989, 129, 221, 129. So, keep reading to learn more.
Given numbers are 989,129,221,129
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 989,129,221,129 is 655707.
Find LCM of 989,129,221,129 with Prime Factorization
| 3 | 989, 129, 221, 129 |
| 43 | 989, 43, 221, 43 |
| 23, 1, 221, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 43 x 23 x 1 x 221 x 1 = 655707
Therefore, the lowest common multiple of 989,129,221,129 is 655707.
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.
989 x 129 x 221 x 129 = 3637206729
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.
989 : 1, 23, 43, 989
129 : 1, 3, 43, 129
221 : 1, 13, 17, 221
129 : 1, 3, 43, 129
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 989,129,221,129, is 1.
Now, the common factors can be found like this.
989:23x 43
129:3x 43
221:13x 17
129:3x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 43x 43 = 5547
Therefore, the value for common factors is 5547.
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 = 3637206729/(1x5547)
LCM = 3637206729/5547
LCM = 655707
Thus, we can understand that the LCM of 989,129,221,129 is 655707.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 989, 129, 221, 129
1. What is the LCM of 989, 129, 221, 129?
Answer: LCM of 989, 129, 221, 129 is 655707.
2. How to calculate the LCM of 989, 129, 221, 129?
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 989, 129, 221, 129.
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}.