Given numbers are 1781,3172

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

The LCM of 1781,3172 is 434564.

Find LCM of 1781,3172 with Prime Factorization

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

13 x 137 x 244 = 434564

Therefore, the lowest common multiple of 1781,3172 is 434564.

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.

1781 x 3172 = 5649332

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.

1781 : 1, 13, 137, 1781

3172 : 1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172

13 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 1781,3172, is 13.

Now, the common factors can be found like this.

1781:13x 137

3172:2x 2x 13x 61

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

= 1

Therefore, the value for common factors is 1.

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 = 5649332/(13x1)

LCM = 5649332/13

LCM = 434564

Thus, we can understand that the LCM of 1781,3172 is 434564.

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

• LCM of 8003, 2673
• LCM of 7068, 7115
• LCM of 6532, 4096
• LCM of 5602, 1143
• LCM of 7085, 5315

1. What is the LCM of 1781, 3172?

Answer: LCM of 1781, 3172 is 434564.

2. How to calculate the LCM of 1781, 3172?

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 1781, 3172.

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}.