LCM of 289, 978, 280, 175
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 289, 978, 280, 175 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 289, 978, 280, 175. So, keep reading to learn more.
Given numbers are 289,978,280,175
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 289,978,280,175 is 197849400.
Find LCM of 289,978,280,175 with Prime Factorization
| 2 | 289, 978, 280, 175 |
| 5 | 289, 489, 140, 175 |
| 7 | 289, 489, 28, 35 |
| 289, 489, 4, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 289 x 489 x 4 x 5 = 197849400
Therefore, the lowest common multiple of 289,978,280,175 is 197849400.
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.
289 x 978 x 280 x 175 = 13849458000
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.
289 : 1, 17, 289
978 : 1, 2, 3, 6, 163, 326, 489, 978
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
175 : 1, 5, 7, 25, 35, 175
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 289,978,280,175, is 1.
Now, the common factors can be found like this.
289:17x 17
978:2x 3x 163
280:2x 2x 2x 5x 7
175:5x 5x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 7 = 70
Therefore, the value for common factors is 70.
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 = 13849458000/(1x70)
LCM = 13849458000/70
LCM = 197849400
Thus, we can understand that the LCM of 289,978,280,175 is 197849400.
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FAQs on LCM of 289, 978, 280, 175
1. What is the LCM of 289, 978, 280, 175?
Answer: LCM of 289, 978, 280, 175 is 197849400.
2. How to calculate the LCM of 289, 978, 280, 175?
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 289, 978, 280, 175.
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}.