Given numbers are 644,137,128,237

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

The LCM of 644,137,128,237 is 669121152.

Find LCM of 644,137,128,237 with Prime Factorization

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

2 x 2 x 161 x 137 x 32 x 237 = 669121152

Therefore, the lowest common multiple of 644,137,128,237 is 669121152.

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 137 x 128 x 237 = 2676484608

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

137 : 1, 137

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

237 : 1, 3, 79, 237

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,137,128,237, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

137:137

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

237:3x 79

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 2676484608/(1x4)

LCM = 2676484608/4

LCM = 669121152

Thus, we can understand that the LCM of 644,137,128,237 is 669121152.

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

• LCM of 949, 295, 858, 133
• LCM of 423, 368, 189, 266
• LCM of 753, 794, 377, 266
• LCM of 496, 390, 884, 225
• LCM of 906, 212, 767, 422

1. What is the LCM of 644, 137, 128, 237?

Answer: LCM of 644, 137, 128, 237 is 669121152.

2. How to calculate the LCM of 644, 137, 128, 237?

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, 137, 128, 237.

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}.