Given numbers are 638,103,655,917

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

The LCM of 638,103,655,917 is 301298690.

Find LCM of 638,103,655,917 with Prime Factorization

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

131 x 638 x 103 x 5 x 7 = 301298690

Therefore, the lowest common multiple of 638,103,655,917 is 301298690.

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.

638 x 103 x 655 x 917 = 39470128390

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

103 : 1, 103

655 : 1, 5, 131, 655

917 : 1, 7, 131, 917

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,103,655,917, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

103:103

655:5x 131

917:7x 131

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

131 = 131

Therefore, the value for common factors is 131.

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 = 39470128390/(1x131)

LCM = 39470128390/131

LCM = 301298690

Thus, we can understand that the LCM of 638,103,655,917 is 301298690.

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

• LCM of 729, 666, 162, 109
• LCM of 901, 698, 428, 461
• LCM of 213, 470, 500, 430
• LCM of 608, 940, 244, 401
• LCM of 927, 624, 413, 842

1. What is the LCM of 638, 103, 655, 917?

Answer: LCM of 638, 103, 655, 917 is 301298690.

2. How to calculate the LCM of 638, 103, 655, 917?

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 638, 103, 655, 917.

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}.