LCM of 278, 418, 785, 988
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 278, 418, 785, 988 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 278, 418, 785, 988. So, keep reading to learn more.
Given numbers are 278,418,785,988
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 278,418,785,988 is 1185861820.
Find LCM of 278,418,785,988 with Prime Factorization
| 2 | 278, 418, 785, 988 |
| 19 | 139, 209, 785, 494 |
| 139, 11, 785, 26 |
Multiply the prime numbers at the bottom and the left side.
2 x 19 x 139 x 11 x 785 x 26 = 1185861820
Therefore, the lowest common multiple of 278,418,785,988 is 1185861820.
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.
278 x 418 x 785 x 988 = 90125498320
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.
278 : 1, 2, 139, 278
418 : 1, 2, 11, 19, 22, 38, 209, 418
785 : 1, 5, 157, 785
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 278,418,785,988, is 1.
Now, the common factors can be found like this.
278:2x 139
418:2x 11x 19
785:5x 157
988:2x 2x 13x 19
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 19 = 76
Therefore, the value for common factors is 76.
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 = 90125498320/(1x76)
LCM = 90125498320/76
LCM = 1185861820
Thus, we can understand that the LCM of 278,418,785,988 is 1185861820.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 278, 418, 785, 988
1. What is the LCM of 278, 418, 785, 988?
Answer: LCM of 278, 418, 785, 988 is 1185861820.
2. How to calculate the LCM of 278, 418, 785, 988?
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 278, 418, 785, 988.
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}.