Given numbers are 644,717,128,423,423

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

The LCM of 644,717,128,423,423 is 2083406976.

Find LCM of 644,717,128,423,423 with Prime Factorization

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

2 x 2 x 3 x 3 x 47 x 161 x 239 x 32 x 1 x 1 = 2083406976

Therefore, the lowest common multiple of 644,717,128,423,423 is 2083406976.

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.

644 x 717 x 128 x 423 x 423 = 10575373810176

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.

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

717 : 1, 3, 239, 717

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

423 : 1, 3, 9, 47, 141, 423

423 : 1, 3, 9, 47, 141, 423

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,717,128,423,423, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

717:3x 239

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

423:3x 3x 47

423:3x 3x 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 2x 3x 3x 3x 47 = 5076

Therefore, the value for common factors is 5076.

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 = 10575373810176/(1x5076)

LCM = 10575373810176/5076

LCM = 2083406976

Thus, we can understand that the LCM of 644,717,128,423,423 is 2083406976.

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

• LCM of 767, 635, 583, 583, 192
• LCM of 145, 973, 569, 172, 925
• LCM of 922, 428, 457, 563, 662
• LCM of 438, 135, 926, 201, 308
• LCM of 917, 929, 800, 845, 454

1. What is the LCM of 644, 717, 128, 423, 423?

Answer: LCM of 644, 717, 128, 423, 423 is 2083406976.

2. How to calculate the LCM of 644, 717, 128, 423, 423?

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 644, 717, 128, 423, 423.

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}.