LCM of 560, 978, 421, 924
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 560, 978, 421, 924 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 560, 978, 421, 924. So, keep reading to learn more.
Given numbers are 560,978,421,924
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 560,978,421,924 is 1268153040.
Find LCM of 560,978,421,924 with Prime Factorization
| 2 | 560, 978, 421, 924 |
| 2 | 280, 489, 421, 462 |
| 3 | 140, 489, 421, 231 |
| 7 | 140, 163, 421, 77 |
| 20, 163, 421, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 20 x 163 x 421 x 11 = 1268153040
Therefore, the lowest common multiple of 560,978,421,924 is 1268153040.
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.
560 x 978 x 421 x 924 = 213049710720
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.
560 : 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560
978 : 1, 2, 3, 6, 163, 326, 489, 978
421 : 1, 421
924 : 1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 560,978,421,924, is 1.
Now, the common factors can be found like this.
560:2x 2x 2x 2x 5x 7
978:2x 3x 163
421:421
924:2x 2x 3x 7x 11
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 7 = 168
Therefore, the value for common factors is 168.
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 = 213049710720/(1x168)
LCM = 213049710720/168
LCM = 1268153040
Thus, we can understand that the LCM of 560,978,421,924 is 1268153040.
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FAQs on LCM of 560, 978, 421, 924
1. What is the LCM of 560, 978, 421, 924?
Answer: LCM of 560, 978, 421, 924 is 1268153040.
2. How to calculate the LCM of 560, 978, 421, 924?
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 560, 978, 421, 924.
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}.