Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Use the LCM of two or more numbers Calculator to find the Least Common Multiple of numbers 621, 945, 690 i.e. 43470 smallest integer divisible by all numbers.
Least common multiple (LCM) of 621, 945, 690 is 43470.
LCM(621, 945, 690) = 43470
Least common multiple or lowest common denominator (lcd) can be calculated in three ways
3 | 621, 945, 690 |
3 | 207, 315, 230 |
3 | 69, 105, 230 |
5 | 23, 35, 230 |
23 | 23, 7, 46 |
1, 7, 2 |
∴ So the LCM of the given numbers is 3 x 3 x 3 x 5 x 23 x 1 x 7 x 2 = 43470
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 621,945,690 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(621,945,690) = 3
common factors(in case of two or more numbers have common factors) = 3105
GCF(621,945,690) x common factors =3 x 3105 = 9315
LCM(621,945,690) = ( 621 × 945 × 690 ) / 9315
LCM(621,945,690) = 404923050 / 9315
LCM(621,945,690) = 43470
∴ Least Common Multiple of 621,945,690 is 43470
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 621, 945, 690?
Answer: LCM of 621, 945, 690 is 43470.
2. What are the Factors of 43470?
Answer: Factors of 43470 are . There are integers that are factors of 43470
3. How to Find the LCM of 621, 945, 690 ?
Least Common Multiple of 621, 945, 690.
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors with last row quotient of common division that is LCM(621, 945, 690) = 2 x 3 x 3 x 3 x 5 x 7 x 23 = 43470.