LCM of 147, 561, 821, 630, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 147, 561, 821, 630, 840 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 147, 561, 821, 630, 840. So, keep reading to learn more.
Given numbers are 147,561,821,630,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 147,561,821,630,840 is 2708216280.
Find LCM of 147,561,821,630,840 with Prime Factorization
| 2 | 147, 561, 821, 630, 840 |
| 3 | 147, 561, 821, 315, 420 |
| 5 | 49, 187, 821, 105, 140 |
| 7 | 49, 187, 821, 21, 28 |
| 7, 187, 821, 3, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 7 x 187 x 821 x 3 x 4 = 2708216280
Therefore, the lowest common multiple of 147,561,821,630,840 is 2708216280.
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.
147 x 561 x 821 x 630 x 840 = 35829701384400
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.
147 : 1, 3, 7, 21, 49, 147
561 : 1, 3, 11, 17, 33, 51, 187, 561
821 : 1, 821
630 : 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 147,561,821,630,840, is 1.
Now, the common factors can be found like this.
147:3x 7x 7
561:3x 11x 17
821:821
630:2x 3x 3x 5x 7
840:2x 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 3x 3x 3x 5x 7x 7 = 13230
Therefore, the value for common factors is 13230.
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 = 35829701384400/(1x13230)
LCM = 35829701384400/13230
LCM = 2708216280
Thus, we can understand that the LCM of 147,561,821,630,840 is 2708216280.
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FAQs on LCM of 147, 561, 821, 630, 840
1. What is the LCM of 147, 561, 821, 630, 840?
Answer: LCM of 147, 561, 821, 630, 840 is 2708216280.
2. How to calculate the LCM of 147, 561, 821, 630, 840?
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 147, 561, 821, 630, 840.
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}.