Given numbers are 397,208,978,905

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 397,208,978,905 is 36543595920.

Find LCM of 397,208,978,905 with Prime Factorization

Multiply the prime numbers at the bottom and the left side.

2 x 397 x 104 x 489 x 905 = 36543595920

Therefore, the lowest common multiple of 397,208,978,905 is 36543595920.

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.

397 x 208 x 978 x 905 = 73087191840

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.

397 : 1, 397

208 : 1, 2, 4, 8, 13, 16, 26, 52, 104, 208

978 : 1, 2, 3, 6, 163, 326, 489, 978

905 : 1, 5, 181, 905

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 397,208,978,905, is 1.

Now, the common factors can be found like this.

397:397

208:2x 2x 2x 2x 13

978:2x 3x 163

905:5x 181

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2 = 2

Therefore, the value for common factors is 2.

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 = 73087191840/(1x2)

LCM = 73087191840/2

LCM = 36543595920

Thus, we can understand that the LCM of 397,208,978,905 is 36543595920.

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 220, 976, 891, 453
• LCM of 300, 610, 978, 195
• LCM of 645, 226, 534, 377
• LCM of 580, 359, 600, 443
• LCM of 765, 115, 934, 212

1. What is the LCM of 397, 208, 978, 905?

Answer: LCM of 397, 208, 978, 905 is 36543595920.

2. How to calculate the LCM of 397, 208, 978, 905?

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 397, 208, 978, 905.

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}.