Given numbers are 217,249,409,620

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

The LCM of 217,249,409,620 is 441989940.

Find LCM of 217,249,409,620 with Prime Factorization

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

31 x 7 x 249 x 409 x 20 = 441989940

Therefore, the lowest common multiple of 217,249,409,620 is 441989940.

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.

217 x 249 x 409 x 620 = 13701688140

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.

217 : 1, 7, 31, 217

249 : 1, 3, 83, 249

409 : 1, 409

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 217,249,409,620, is 1.

Now, the common factors can be found like this.

217:7x 31

249:3x 83

409:409

620:2x 2x 5x 31

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

31 = 31

Therefore, the value for common factors is 31.

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 = 13701688140/(1x31)

LCM = 13701688140/31

LCM = 441989940

Thus, we can understand that the LCM of 217,249,409,620 is 441989940.

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

• LCM of 764, 534, 366, 916
• LCM of 653, 868, 409, 504
• LCM of 624, 516, 538, 696
• LCM of 885, 556, 869, 528
• LCM of 563, 248, 553, 653

1. What is the LCM of 217, 249, 409, 620?

Answer: LCM of 217, 249, 409, 620 is 441989940.

2. How to calculate the LCM of 217, 249, 409, 620?

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 217, 249, 409, 620.

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}.