LCM of 966, 421, 391, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 966, 421, 391, 690 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 966, 421, 391, 690. So, keep reading to learn more.
Given numbers are 966,421,391,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 966,421,391,690 is 34568310.
Find LCM of 966,421,391,690 with Prime Factorization
| 2 | 966, 421, 391, 690 |
| 3 | 483, 421, 391, 345 |
| 23 | 161, 421, 391, 115 |
| 7, 421, 17, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 23 x 7 x 421 x 17 x 5 = 34568310
Therefore, the lowest common multiple of 966,421,391,690 is 34568310.
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.
966 x 421 x 391 x 690 = 109719815940
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.
966 : 1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966
421 : 1, 421
391 : 1, 17, 23, 391
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 966,421,391,690, is 1.
Now, the common factors can be found like this.
966:2x 3x 7x 23
421:421
391:17x 23
690:2x 3x 5x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 23x 23 = 3174
Therefore, the value for common factors is 3174.
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 = 109719815940/(1x3174)
LCM = 109719815940/3174
LCM = 34568310
Thus, we can understand that the LCM of 966,421,391,690 is 34568310.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 966, 421, 391, 690
1. What is the LCM of 966, 421, 391, 690?
Answer: LCM of 966, 421, 391, 690 is 34568310.
2. How to calculate the LCM of 966, 421, 391, 690?
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 966, 421, 391, 690.
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}.