Given numbers are 639,689,473,407

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

The LCM of 639,689,473,407 is 7705182771.

Find LCM of 639,689,473,407 with Prime Factorization

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

11 x 639 x 689 x 43 x 37 = 7705182771

Therefore, the lowest common multiple of 639,689,473,407 is 7705182771.

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.

639 x 689 x 473 x 407 = 84757010481

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.

639 : 1, 3, 9, 71, 213, 639

689 : 1, 13, 53, 689

473 : 1, 11, 43, 473

407 : 1, 11, 37, 407

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 639,689,473,407, is 1.

Now, the common factors can be found like this.

639:3x 3x 71

689:13x 53

473:11x 43

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.

11 = 11

Therefore, the value for common factors is 11.

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 = 84757010481/(1x11)

LCM = 84757010481/11

LCM = 7705182771

Thus, we can understand that the LCM of 639,689,473,407 is 7705182771.

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

• LCM of 927, 200, 795, 389
• LCM of 976, 290, 277, 203
• LCM of 839, 813, 141, 952
• LCM of 688, 792, 407, 152
• LCM of 173, 755, 748, 419

1. What is the LCM of 639, 689, 473, 407?

Answer: LCM of 639, 689, 473, 407 is 7705182771.

2. How to calculate the LCM of 639, 689, 473, 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 639, 689, 473, 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}.