LCM of 166, 392, 210, 661
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 166, 392, 210, 661 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 166, 392, 210, 661. So, keep reading to learn more.
Given numbers are 166,392,210,661
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 166,392,210,661 is 322594440.
Find LCM of 166,392,210,661 with Prime Factorization
| 2 | 166, 392, 210, 661 |
| 7 | 83, 196, 105, 661 |
| 83, 28, 15, 661 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 83 x 28 x 15 x 661 = 322594440
Therefore, the lowest common multiple of 166,392,210,661 is 322594440.
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.
166 x 392 x 210 x 661 = 9032644320
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.
166 : 1, 2, 83, 166
392 : 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
210 : 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
661 : 1, 661
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 166,392,210,661, is 1.
Now, the common factors can be found like this.
166:2x 83
392:2x 2x 2x 7x 7
210:2x 3x 5x 7
661:661
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 7 = 28
Therefore, the value for common factors is 28.
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 = 9032644320/(1x28)
LCM = 9032644320/28
LCM = 322594440
Thus, we can understand that the LCM of 166,392,210,661 is 322594440.
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FAQs on LCM of 166, 392, 210, 661
1. What is the LCM of 166, 392, 210, 661?
Answer: LCM of 166, 392, 210, 661 is 322594440.
2. How to calculate the LCM of 166, 392, 210, 661?
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 166, 392, 210, 661.
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}.