LCM of 847, 615, 257, 158, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 847, 615, 257, 158, 690 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 847, 615, 257, 158, 690. So, keep reading to learn more.
Given numbers are 847,615,257,158,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 847,615,257,158,690 is 486492973890.
Find LCM of 847,615,257,158,690 with Prime Factorization
| 2 | 847, 615, 257, 158, 690 |
| 3 | 847, 615, 257, 79, 345 |
| 5 | 847, 205, 257, 79, 115 |
| 847, 41, 257, 79, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 847 x 41 x 257 x 79 x 23 = 486492973890
Therefore, the lowest common multiple of 847,615,257,158,690 is 486492973890.
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.
847 x 615 x 257 x 158 x 690 = 14594789216700
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.
847 : 1, 7, 11, 77, 121, 847
615 : 1, 3, 5, 15, 41, 123, 205, 615
257 : 1, 257
158 : 1, 2, 79, 158
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 847,615,257,158,690, is 1.
Now, the common factors can be found like this.
847:7x 11x 11
615:3x 5x 41
257:257
158:2x 79
690:2x 3x 5x 23
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 5 = 30
Therefore, the value for common factors is 30.
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 = 14594789216700/(1x30)
LCM = 14594789216700/30
LCM = 486492973890
Thus, we can understand that the LCM of 847,615,257,158,690 is 486492973890.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 847, 615, 257, 158, 690
1. What is the LCM of 847, 615, 257, 158, 690?
Answer: LCM of 847, 615, 257, 158, 690 is 486492973890.
2. How to calculate the LCM of 847, 615, 257, 158, 690?
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 847, 615, 257, 158, 690.
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}.