Given numbers are 661,322,721

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

The LCM of 661,322,721 is 21922726.

Find LCM of 661,322,721 with Prime Factorization

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

7 x 661 x 46 x 103 = 21922726

Therefore, the lowest common multiple of 661,322,721 is 21922726.

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.

661 x 322 x 721 = 153459082

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.

661 : 1, 661

322 : 1, 2, 7, 14, 23, 46, 161, 322

721 : 1, 7, 103, 721

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 661,322,721, is 1.

Now, the common factors can be found like this.

661:661

322:2x 7x 23

721:7x 103

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

7 = 7

Therefore, the value for common factors is 7.

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 = 153459082/(1x7)

LCM = 153459082/7

LCM = 21922726

Thus, we can understand that the LCM of 661,322,721 is 21922726.

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

• LCM of 721, 792, 678
• LCM of 687, 809, 660
• LCM of 416, 847, 820
• LCM of 946, 101, 306
• LCM of 691, 419, 661

1. What is the LCM of 661, 322, 721?

Answer: LCM of 661, 322, 721 is 21922726.

2. How to calculate the LCM of 661, 322, 721?

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 661, 322, 721.

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}.