LCM of 755, 505, 697, 221
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 755, 505, 697, 221 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 755, 505, 697, 221. So, keep reading to learn more.
Given numbers are 755,505,697,221
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 755,505,697,221 is 690946555.
Find LCM of 755,505,697,221 with Prime Factorization
| 5 | 755, 505, 697, 221 |
| 17 | 151, 101, 697, 221 |
| 151, 101, 41, 13 |
Multiply the prime numbers at the bottom and the left side.
5 x 17 x 151 x 101 x 41 x 13 = 690946555
Therefore, the lowest common multiple of 755,505,697,221 is 690946555.
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.
755 x 505 x 697 x 221 = 58730457175
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.
755 : 1, 5, 151, 755
505 : 1, 5, 101, 505
697 : 1, 17, 41, 697
221 : 1, 13, 17, 221
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 755,505,697,221, is 1.
Now, the common factors can be found like this.
755:5x 151
505:5x 101
697:17x 41
221:13x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 17 = 85
Therefore, the value for common factors is 85.
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 = 58730457175/(1x85)
LCM = 58730457175/85
LCM = 690946555
Thus, we can understand that the LCM of 755,505,697,221 is 690946555.
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FAQs on LCM of 755, 505, 697, 221
1. What is the LCM of 755, 505, 697, 221?
Answer: LCM of 755, 505, 697, 221 is 690946555.
2. How to calculate the LCM of 755, 505, 697, 221?
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 755, 505, 697, 221.
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}.