LCM of 221, 692, 402, 790, 646
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 221, 692, 402, 790, 646 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 221, 692, 402, 790, 646. So, keep reading to learn more.
Given numbers are 221,692,402,790,646
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 221,692,402,790,646 is 230698686660.
Find LCM of 221,692,402,790,646 with Prime Factorization
| 2 | 221, 692, 402, 790, 646 |
| 17 | 221, 346, 201, 395, 323 |
| 13, 346, 201, 395, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 17 x 13 x 346 x 201 x 395 x 19 = 230698686660
Therefore, the lowest common multiple of 221,692,402,790,646 is 230698686660.
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.
221 x 692 x 402 x 790 x 646 = 31375021385760
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.
221 : 1, 13, 17, 221
692 : 1, 2, 4, 173, 346, 692
402 : 1, 2, 3, 6, 67, 134, 201, 402
790 : 1, 2, 5, 10, 79, 158, 395, 790
646 : 1, 2, 17, 19, 34, 38, 323, 646
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 221,692,402,790,646, is 1.
Now, the common factors can be found like this.
221:13x 17
692:2x 2x 173
402:2x 3x 67
790:2x 5x 79
646:2x 17x 19
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 2x 17 = 136
Therefore, the value for common factors is 136.
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 = 31375021385760/(1x136)
LCM = 31375021385760/136
LCM = 230698686660
Thus, we can understand that the LCM of 221,692,402,790,646 is 230698686660.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 221, 692, 402, 790, 646
1. What is the LCM of 221, 692, 402, 790, 646?
Answer: LCM of 221, 692, 402, 790, 646 is 230698686660.
2. How to calculate the LCM of 221, 692, 402, 790, 646?
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 221, 692, 402, 790, 646.
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}.