LCM of 220, 128, 947, 671, 970
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 220, 128, 947, 671, 970 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 220, 128, 947, 671, 970. So, keep reading to learn more.
Given numbers are 220,128,947,671,970
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 220,128,947,671,970 is 39447928960.
Find LCM of 220,128,947,671,970 with Prime Factorization
| 2 | 220, 128, 947, 671, 970 |
| 2 | 110, 64, 947, 671, 485 |
| 5 | 55, 32, 947, 671, 485 |
| 11 | 11, 32, 947, 671, 97 |
| 1, 32, 947, 61, 97 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 11 x 1 x 32 x 947 x 61 x 97 = 39447928960
Therefore, the lowest common multiple of 220,128,947,671,970 is 39447928960.
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.
220 x 128 x 947 x 671 x 970 = 17357088742400
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.
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
128 : 1, 2, 4, 8, 16, 32, 64, 128
947 : 1, 947
671 : 1, 11, 61, 671
970 : 1, 2, 5, 10, 97, 194, 485, 970
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 220,128,947,671,970, is 1.
Now, the common factors can be found like this.
220:2x 2x 5x 11
128:2x 2x 2x 2x 2x 2x 2
947:947
671:11x 61
970:2x 5x 97
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 5x 11 = 440
Therefore, the value for common factors is 440.
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 = 17357088742400/(1x440)
LCM = 17357088742400/440
LCM = 39447928960
Thus, we can understand that the LCM of 220,128,947,671,970 is 39447928960.
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FAQs on LCM of 220, 128, 947, 671, 970
1. What is the LCM of 220, 128, 947, 671, 970?
Answer: LCM of 220, 128, 947, 671, 970 is 39447928960.
2. How to calculate the LCM of 220, 128, 947, 671, 970?
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 220, 128, 947, 671, 970.
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}.