Given numbers are 641,418,128,517

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

The LCM of 641,418,128,517 is 805957504.

Find LCM of 641,418,128,517 with Prime Factorization

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

2 x 11 x 641 x 19 x 64 x 47 = 805957504

Therefore, the lowest common multiple of 641,418,128,517 is 805957504.

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.

641 x 418 x 128 x 517 = 17731065088

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.

641 : 1, 641

418 : 1, 2, 11, 19, 22, 38, 209, 418

128 : 1, 2, 4, 8, 16, 32, 64, 128

517 : 1, 11, 47, 517

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 641,418,128,517, is 1.

Now, the common factors can be found like this.

641:641

418:2x 11x 19

128:2x 2x 2x 2x 2x 2x 2

517:11x 47

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

2x 11 = 22

Therefore, the value for common factors is 22.

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 = 17731065088/(1x22)

LCM = 17731065088/22

LCM = 805957504

Thus, we can understand that the LCM of 641,418,128,517 is 805957504.

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

• LCM of 883, 303, 289, 477
• LCM of 244, 960, 943, 433
• LCM of 449, 182, 598, 515
• LCM of 780, 502, 101, 371
• LCM of 504, 379, 484, 909

1. What is the LCM of 641, 418, 128, 517?

Answer: LCM of 641, 418, 128, 517 is 805957504.

2. How to calculate the LCM of 641, 418, 128, 517?

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 641, 418, 128, 517.

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}.