Given numbers are 645,721,403,412

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

The LCM of 645,721,403,412 is 749652540.

Find LCM of 645,721,403,412 with Prime Factorization

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

103 x 645 x 7 x 403 x 4 = 749652540

Therefore, the lowest common multiple of 645,721,403,412 is 749652540.

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.

645 x 721 x 403 x 412 = 77214211620

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.

645 : 1, 3, 5, 15, 43, 129, 215, 645

721 : 1, 7, 103, 721

403 : 1, 13, 31, 403

412 : 1, 2, 4, 103, 206, 412

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,721,403,412, is 1.

Now, the common factors can be found like this.

645:3x 5x 43

721:7x 103

403:13x 31

412:2x 2x 103

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

103 = 103

Therefore, the value for common factors is 103.

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 = 77214211620/(1x103)

LCM = 77214211620/103

LCM = 749652540

Thus, we can understand that the LCM of 645,721,403,412 is 749652540.

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

• LCM of 900, 199, 238, 832
• LCM of 132, 175, 263, 882
• LCM of 107, 654, 851, 301
• LCM of 973, 599, 569, 810
• LCM of 444, 487, 858, 794

1. What is the LCM of 645, 721, 403, 412?

Answer: LCM of 645, 721, 403, 412 is 749652540.

2. How to calculate the LCM of 645, 721, 403, 412?

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 645, 721, 403, 412.

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}.