LCM of 180, 420, 842, 997
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 180, 420, 842, 997 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 180, 420, 842, 997. So, keep reading to learn more.
Given numbers are 180,420,842,997
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 180,420,842,997 is 528868620.
Find LCM of 180,420,842,997 with Prime Factorization
| 2 | 180, 420, 842, 997 |
| 2 | 90, 210, 421, 997 |
| 3 | 45, 105, 421, 997 |
| 5 | 15, 35, 421, 997 |
| 3, 7, 421, 997 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 3 x 7 x 421 x 997 = 528868620
Therefore, the lowest common multiple of 180,420,842,997 is 528868620.
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.
180 x 420 x 842 x 997 = 63464234400
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.
180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
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
842 : 1, 2, 421, 842
997 : 1, 997
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 180,420,842,997, is 1.
Now, the common factors can be found like this.
180:2x 2x 3x 3x 5
420:2x 2x 3x 5x 7
842:2x 421
997:997
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 3x 5 = 120
Therefore, the value for common factors is 120.
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 = 63464234400/(1x120)
LCM = 63464234400/120
LCM = 528868620
Thus, we can understand that the LCM of 180,420,842,997 is 528868620.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 180, 420, 842, 997
1. What is the LCM of 180, 420, 842, 997?
Answer: LCM of 180, 420, 842, 997 is 528868620.
2. How to calculate the LCM of 180, 420, 842, 997?
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 180, 420, 842, 997.
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}.