LCM of 651, 420, 961, 340
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 651, 420, 961, 340 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 651, 420, 961, 340. So, keep reading to learn more.
Given numbers are 651,420,961,340
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 651,420,961,340 is 6861540.
Find LCM of 651,420,961,340 with Prime Factorization
| 2 | 651, 420, 961, 340 |
| 2 | 651, 210, 961, 170 |
| 3 | 651, 105, 961, 85 |
| 5 | 217, 35, 961, 85 |
| 7 | 217, 7, 961, 17 |
| 31 | 31, 1, 961, 17 |
| 1, 1, 31, 17 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 31 x 1 x 1 x 31 x 17 = 6861540
Therefore, the lowest common multiple of 651,420,961,340 is 6861540.
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.
651 x 420 x 961 x 340 = 89337250800
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.
651 : 1, 3, 7, 21, 31, 93, 217, 651
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
961 : 1, 31, 961
340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 651,420,961,340, is 1.
Now, the common factors can be found like this.
651:3x 7x 31
420:2x 2x 3x 5x 7
961:31x 31
340:2x 2x 5x 17
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 3x 5x 7x 31 = 13020
Therefore, the value for common factors is 13020.
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 = 89337250800/(1x13020)
LCM = 89337250800/13020
LCM = 6861540
Thus, we can understand that the LCM of 651,420,961,340 is 6861540.
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FAQs on LCM of 651, 420, 961, 340
1. What is the LCM of 651, 420, 961, 340?
Answer: LCM of 651, 420, 961, 340 is 6861540.
2. How to calculate the LCM of 651, 420, 961, 340?
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 651, 420, 961, 340.
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}.