LCM of 910, 624, 420, 72
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 910, 624, 420, 72 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 910, 624, 420, 72. So, keep reading to learn more.
Given numbers are 910,624,420,72
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 910,624,420,72 is 65520.
Find LCM of 910,624,420,72 with Prime Factorization
| 2 | 910, 624, 420, 72 |
| 2 | 455, 312, 210, 36 |
| 2 | 455, 156, 105, 18 |
| 3 | 455, 78, 105, 9 |
| 5 | 455, 26, 35, 3 |
| 7 | 91, 26, 7, 3 |
| 13 | 13, 26, 1, 3 |
| 1, 2, 1, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 5 x 7 x 13 x 1 x 2 x 1 x 3 = 65520
Therefore, the lowest common multiple of 910,624,420,72 is 65520.
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.
910 x 624 x 420 x 72 = 17171481600
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.
910 : 1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910
624 : 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624
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
72 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 910,624,420,72, is 2.
Now, the common factors can be found like this.
910:2x 5x 7x 13
624:2x 2x 2x 2x 3x 13
420:2x 2x 3x 5x 7
72:2x 2x 2x 3x 3
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 3x 3x 5x 7x 13 = 131040
Therefore, the value for common factors is 131040.
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 = 17171481600/(2x131040)
LCM = 17171481600/262080
LCM = 65520
Thus, we can understand that the LCM of 910,624,420,72 is 65520.
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FAQs on LCM of 910, 624, 420, 72
1. What is the LCM of 910, 624, 420, 72?
Answer: LCM of 910, 624, 420, 72 is 65520.
2. How to calculate the LCM of 910, 624, 420, 72?
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 910, 624, 420, 72.
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}.