Given numbers are 39,45,781

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

The LCM of 39,45,781 is 456885.

Find LCM of 39,45,781 with Prime Factorization

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

3 x 13 x 15 x 781 = 456885

Therefore, the lowest common multiple of 39,45,781 is 456885.

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.

39 x 45 x 781 = 1370655

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.

39 : 1, 3, 13, 39

45 : 1, 3, 5, 9, 15, 45

781 : 1, 11, 71, 781

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 39,45,781, is 1.

Now, the common factors can be found like this.

39:3x 13

45:3x 3x 5

781:11x 71

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

3 = 3

Therefore, the value for common factors is 3.

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 = 1370655/(1x3)

LCM = 1370655/3

LCM = 456885

Thus, we can understand that the LCM of 39,45,781 is 456885.

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

• LCM of 67, 58, 942
• LCM of 18, 43, 749
• LCM of 62, 57, 430
• LCM of 64, 89, 959
• LCM of 14, 22, 822

1. What is the LCM of 39, 45, 781?

Answer: LCM of 39, 45, 781 is 456885.

2. How to calculate the LCM of 39, 45, 781?

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 39, 45, 781.

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}.