Given numbers are 421,458,690,643

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

The LCM of 421,458,690,643 is 42773781030.

Find LCM of 421,458,690,643 with Prime Factorization

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

2 x 421 x 229 x 345 x 643 = 42773781030

Therefore, the lowest common multiple of 421,458,690,643 is 42773781030.

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.

421 x 458 x 690 x 643 = 85547562060

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.

421 : 1, 421

458 : 1, 2, 229, 458

690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

643 : 1, 643

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 421,458,690,643, is 1.

Now, the common factors can be found like this.

421:421

458:2x 229

690:2x 3x 5x 23

643:643

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

2 = 2

Therefore, the value for common factors is 2.

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 = 85547562060/(1x2)

LCM = 85547562060/2

LCM = 42773781030

Thus, we can understand that the LCM of 421,458,690,643 is 42773781030.

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

• LCM of 565, 157, 593, 367
• LCM of 624, 724, 223, 895
• LCM of 231, 443, 362, 247
• LCM of 241, 972, 726, 790
• LCM of 333, 191, 408, 193

1. What is the LCM of 421, 458, 690, 643?

Answer: LCM of 421, 458, 690, 643 is 42773781030.

2. How to calculate the LCM of 421, 458, 690, 643?

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 421, 458, 690, 643.

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}.