Given numbers are 391,605,693,407

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

The LCM of 391,605,693,407 is 551409705.

Find LCM of 391,605,693,407 with Prime Factorization

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

11 x 391 x 55 x 63 x 37 = 551409705

Therefore, the lowest common multiple of 391,605,693,407 is 551409705.

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.

391 x 605 x 693 x 407 = 66720574305

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.

391 : 1, 17, 23, 391

605 : 1, 5, 11, 55, 121, 605

693 : 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693

407 : 1, 11, 37, 407

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,605,693,407, is 1.

Now, the common factors can be found like this.

391:17x 23

605:5x 11x 11

693:3x 3x 7x 11

407:11x 37

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

11x 11 = 121

Therefore, the value for common factors is 121.

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 = 66720574305/(1x121)

LCM = 66720574305/121

LCM = 551409705

Thus, we can understand that the LCM of 391,605,693,407 is 551409705.

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

• LCM of 969, 375, 566, 457
• LCM of 119, 989, 892, 642
• LCM of 305, 689, 227, 262
• LCM of 835, 502, 901, 919
• LCM of 865, 738, 778, 368

1. What is the LCM of 391, 605, 693, 407?

Answer: LCM of 391, 605, 693, 407 is 551409705.

2. How to calculate the LCM of 391, 605, 693, 407?

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 391, 605, 693, 407.

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}.