LCM of 221, 770, 139, 494
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 221, 770, 139, 494 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, 770, 139, 494. So, keep reading to learn more.
Given numbers are 221,770,139,494
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 221,770,139,494 is 449418970.
Find LCM of 221,770,139,494 with Prime Factorization
| 2 | 221, 770, 139, 494 |
| 13 | 221, 385, 139, 247 |
| 17, 385, 139, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 17 x 385 x 139 x 19 = 449418970
Therefore, the lowest common multiple of 221,770,139,494 is 449418970.
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 770 x 139 x 494 = 11684893220
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
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
139 : 1, 139
494 : 1, 2, 13, 19, 26, 38, 247, 494
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 221,770,139,494, is 1.
Now, the common factors can be found like this.
221:13x 17
770:2x 5x 7x 11
139:139
494:2x 13x 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 13 = 26
Therefore, the value for common factors is 26.
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 = 11684893220/(1x26)
LCM = 11684893220/26
LCM = 449418970
Thus, we can understand that the LCM of 221,770,139,494 is 449418970.
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FAQs on LCM of 221, 770, 139, 494
1. What is the LCM of 221, 770, 139, 494?
Answer: LCM of 221, 770, 139, 494 is 449418970.
2. How to calculate the LCM of 221, 770, 139, 494?
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, 770, 139, 494.
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}.