LCM of 721, 981, 423, 446, 486
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 721, 981, 423, 446, 486 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 721, 981, 423, 446, 486. So, keep reading to learn more.
Given numbers are 721,981,423,446,486
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 721,981,423,446,486 is 400313976174.
Find LCM of 721,981,423,446,486 with Prime Factorization
| 2 | 721, 981, 423, 446, 486 |
| 3 | 721, 981, 423, 223, 243 |
| 3 | 721, 327, 141, 223, 81 |
| 721, 109, 47, 223, 27 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 721 x 109 x 47 x 223 x 27 = 400313976174
Therefore, the lowest common multiple of 721,981,423,446,486 is 400313976174.
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.
721 x 981 x 423 x 446 x 486 = 64850864140188
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.
721 : 1, 7, 103, 721
981 : 1, 3, 9, 109, 327, 981
423 : 1, 3, 9, 47, 141, 423
446 : 1, 2, 223, 446
486 : 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,981,423,446,486, is 1.
Now, the common factors can be found like this.
721:7x 103
981:3x 3x 109
423:3x 3x 47
446:2x 223
486:2x 3x 3x 3x 3x 3
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 3 = 162
Therefore, the value for common factors is 162.
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 = 64850864140188/(1x162)
LCM = 64850864140188/162
LCM = 400313976174
Thus, we can understand that the LCM of 721,981,423,446,486 is 400313976174.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 721, 981, 423, 446, 486
1. What is the LCM of 721, 981, 423, 446, 486?
Answer: LCM of 721, 981, 423, 446, 486 is 400313976174.
2. How to calculate the LCM of 721, 981, 423, 446, 486?
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 721, 981, 423, 446, 486.
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}.