LCM of 198, 161, 772, 154, 140
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 198, 161, 772, 154, 140 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 198, 161, 772, 154, 140. So, keep reading to learn more.
Given numbers are 198,161,772,154,140
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 198,161,772,154,140 is 61524540.
Find LCM of 198,161,772,154,140 with Prime Factorization
| 2 | 198, 161, 772, 154, 140 |
| 2 | 99, 161, 386, 77, 70 |
| 7 | 99, 161, 193, 77, 35 |
| 11 | 99, 23, 193, 11, 5 |
| 9, 23, 193, 1, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 11 x 9 x 23 x 193 x 1 x 5 = 61524540
Therefore, the lowest common multiple of 198,161,772,154,140 is 61524540.
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.
198 x 161 x 772 x 154 x 140 = 530587632960
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.
198 : 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
161 : 1, 7, 23, 161
772 : 1, 2, 4, 193, 386, 772
154 : 1, 2, 7, 11, 14, 22, 77, 154
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 198,161,772,154,140, is 1.
Now, the common factors can be found like this.
198:2x 3x 3x 11
161:7x 23
772:2x 2x 193
154:2x 7x 11
140:2x 2x 5x 7
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 2x 7x 7x 11 = 8624
Therefore, the value for common factors is 8624.
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 = 530587632960/(1x8624)
LCM = 530587632960/8624
LCM = 61524540
Thus, we can understand that the LCM of 198,161,772,154,140 is 61524540.
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FAQs on LCM of 198, 161, 772, 154, 140
1. What is the LCM of 198, 161, 772, 154, 140?
Answer: LCM of 198, 161, 772, 154, 140 is 61524540.
2. How to calculate the LCM of 198, 161, 772, 154, 140?
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 198, 161, 772, 154, 140.
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}.