LCM of 779, 221, 699, 390
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 779, 221, 699, 390 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 779, 221, 699, 390. So, keep reading to learn more.
Given numbers are 779,221,699,390
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 779,221,699,390 is 1203391410.
Find LCM of 779,221,699,390 with Prime Factorization
| 3 | 779, 221, 699, 390 |
| 13 | 779, 221, 233, 130 |
| 779, 17, 233, 10 |
Multiply the prime numbers at the bottom and the left side.
3 x 13 x 779 x 17 x 233 x 10 = 1203391410
Therefore, the lowest common multiple of 779,221,699,390 is 1203391410.
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.
779 x 221 x 699 x 390 = 46932264990
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.
779 : 1, 19, 41, 779
221 : 1, 13, 17, 221
699 : 1, 3, 233, 699
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 779,221,699,390, is 1.
Now, the common factors can be found like this.
779:19x 41
221:13x 17
699:3x 233
390:2x 3x 5x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 13 = 39
Therefore, the value for common factors is 39.
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 = 46932264990/(1x39)
LCM = 46932264990/39
LCM = 1203391410
Thus, we can understand that the LCM of 779,221,699,390 is 1203391410.
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FAQs on LCM of 779, 221, 699, 390
1. What is the LCM of 779, 221, 699, 390?
Answer: LCM of 779, 221, 699, 390 is 1203391410.
2. How to calculate the LCM of 779, 221, 699, 390?
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 779, 221, 699, 390.
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}.