Given numbers are 128,630,173,721

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

The LCM of 128,630,173,721 is 718462080.

Find LCM of 128,630,173,721 with Prime Factorization

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

2 x 7 x 64 x 45 x 173 x 103 = 718462080

Therefore, the lowest common multiple of 128,630,173,721 is 718462080.

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.

128 x 630 x 173 x 721 = 10058469120

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.

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

630 : 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

173 : 1, 173

721 : 1, 7, 103, 721

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,630,173,721, is 1.

Now, the common factors can be found like this.

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

630:2x 3x 3x 5x 7

173:173

721:7x 103

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

2x 7 = 14

Therefore, the value for common factors is 14.

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 = 10058469120/(1x14)

LCM = 10058469120/14

LCM = 718462080

Thus, we can understand that the LCM of 128,630,173,721 is 718462080.

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

• LCM of 885, 799, 517, 229
• LCM of 946, 673, 403, 572
• LCM of 478, 625, 164, 113
• LCM of 191, 152, 189, 112
• LCM of 602, 529, 234, 597

1. What is the LCM of 128, 630, 173, 721?

Answer: LCM of 128, 630, 173, 721 is 718462080.

2. How to calculate the LCM of 128, 630, 173, 721?

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 128, 630, 173, 721.

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}.