LCM of 420, 912, 192, 956
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 420, 912, 192, 956 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 420, 912, 192, 956. So, keep reading to learn more.
Given numbers are 420,912,192,956
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 420,912,192,956 is 30515520.
Find LCM of 420,912,192,956 with Prime Factorization
| 2 | 420, 912, 192, 956 |
| 2 | 210, 456, 96, 478 |
| 2 | 105, 228, 48, 239 |
| 2 | 105, 114, 24, 239 |
| 3 | 105, 57, 12, 239 |
| 35, 19, 4, 239 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 35 x 19 x 4 x 239 = 30515520
Therefore, the lowest common multiple of 420,912,192,956 is 30515520.
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.
420 x 912 x 192 x 956 = 70307758080
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.
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
912 : 1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912
192 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192
956 : 1, 2, 4, 239, 478, 956
4 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,912,192,956, is 4.
Now, the common factors can be found like this.
420:2x 2x 3x 5x 7
912:2x 2x 2x 2x 3x 19
192:2x 2x 2x 2x 2x 2x 3
956:2x 2x 239
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 2x 3x 3 = 576
Therefore, the value for common factors is 576.
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 = 70307758080/(4x576)
LCM = 70307758080/2304
LCM = 30515520
Thus, we can understand that the LCM of 420,912,192,956 is 30515520.
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FAQs on LCM of 420, 912, 192, 956
1. What is the LCM of 420, 912, 192, 956?
Answer: LCM of 420, 912, 192, 956 is 30515520.
2. How to calculate the LCM of 420, 912, 192, 956?
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 420, 912, 192, 956.
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}.