LCM of 140, 641, 280, 984, 420
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 140, 641, 280, 984, 420 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 140, 641, 280, 984, 420. So, keep reading to learn more.
Given numbers are 140,641,280,984,420
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 140,641,280,984,420 is 22076040.
Find LCM of 140,641,280,984,420 with Prime Factorization
| 2 | 140, 641, 280, 984, 420 |
| 2 | 70, 641, 140, 492, 210 |
| 2 | 35, 641, 70, 246, 105 |
| 3 | 35, 641, 35, 123, 105 |
| 5 | 35, 641, 35, 41, 35 |
| 7 | 7, 641, 7, 41, 7 |
| 1, 641, 1, 41, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 5 x 7 x 1 x 641 x 1 x 41 x 1 = 22076040
Therefore, the lowest common multiple of 140,641,280,984,420 is 22076040.
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.
140 x 641 x 280 x 984 x 420 = 10384569216000
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.
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
641 : 1, 641
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
984 : 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984
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
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 140,641,280,984,420, is 1.
Now, the common factors can be found like this.
140:2x 2x 5x 7
641:641
280:2x 2x 2x 5x 7
984:2x 2x 2x 3x 41
420:2x 2x 3x 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 2x 2x 2x 2x 2x 2x 3x 5x 5x 7x 7 = 470400
Therefore, the value for common factors is 470400.
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 = 10384569216000/(1x470400)
LCM = 10384569216000/470400
LCM = 22076040
Thus, we can understand that the LCM of 140,641,280,984,420 is 22076040.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 140, 641, 280, 984, 420
1. What is the LCM of 140, 641, 280, 984, 420?
Answer: LCM of 140, 641, 280, 984, 420 is 22076040.
2. How to calculate the LCM of 140, 641, 280, 984, 420?
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 140, 641, 280, 984, 420.
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}.