LCM of 757, 956, 120, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 757, 956, 120, 840 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 757, 956, 120, 840. So, keep reading to learn more.
Given numbers are 757,956,120,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 757,956,120,840 is 151975320.
Find LCM of 757,956,120,840 with Prime Factorization
| 2 | 757, 956, 120, 840 |
| 2 | 757, 478, 60, 420 |
| 2 | 757, 239, 30, 210 |
| 3 | 757, 239, 15, 105 |
| 5 | 757, 239, 5, 35 |
| 757, 239, 1, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 5 x 757 x 239 x 1 x 7 = 151975320
Therefore, the lowest common multiple of 757,956,120,840 is 151975320.
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.
757 x 956 x 120 x 840 = 72948153600
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.
757 : 1, 757
956 : 1, 2, 4, 239, 478, 956
120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 757,956,120,840, is 1.
Now, the common factors can be found like this.
757:757
956:2x 2x 239
120:2x 2x 2x 3x 5
840:2x 2x 2x 3x 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 2x 3x 5 = 480
Therefore, the value for common factors is 480.
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 = 72948153600/(1x480)
LCM = 72948153600/480
LCM = 151975320
Thus, we can understand that the LCM of 757,956,120,840 is 151975320.
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FAQs on LCM of 757, 956, 120, 840
1. What is the LCM of 757, 956, 120, 840?
Answer: LCM of 757, 956, 120, 840 is 151975320.
2. How to calculate the LCM of 757, 956, 120, 840?
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 757, 956, 120, 840.
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}.