Given numbers are 644,626,397,409,663

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

The LCM of 644,626,397,409,663 is 21699890786028.

Find LCM of 644,626,397,409,663 with Prime Factorization

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

2 x 322 x 313 x 397 x 409 x 663 = 21699890786028

Therefore, the lowest common multiple of 644,626,397,409,663 is 21699890786028.

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.

644 x 626 x 397 x 409 x 663 = 43399781572056

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.

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

626 : 1, 2, 313, 626

397 : 1, 397

409 : 1, 409

663 : 1, 3, 13, 17, 39, 51, 221, 663

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,626,397,409,663, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

626:2x 313

397:397

409:409

663:3x 13x 17

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 = 43399781572056/(1x2)

LCM = 43399781572056/2

LCM = 21699890786028

Thus, we can understand that the LCM of 644,626,397,409,663 is 21699890786028.

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

• LCM of 289, 865, 183, 872, 581
• LCM of 491, 182, 974, 346, 973
• LCM of 351, 108, 289, 952, 212
• LCM of 812, 214, 178, 818, 146
• LCM of 247, 963, 193, 848, 843

1. What is the LCM of 644, 626, 397, 409, 663?

Answer: LCM of 644, 626, 397, 409, 663 is 21699890786028.

2. How to calculate the LCM of 644, 626, 397, 409, 663?

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 644, 626, 397, 409, 663.

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}.