Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 666 and 670 the smallest integer that is 223110 that is divisible by both numbers.
Least Common Multiple (LCM) of 666 and 670 is 223110.
LCM(666,670) = 223110
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 666 and 670. First we will calculate the prime factors of 666 and 670.
Prime Factorization of 666
2 | 666 |
3 | 333 |
3 | 111 |
37 | 37 |
1 |
Prime factors of 666 are 2, 3,37. Prime factorization of 666 in exponential form is:
666 = 21×32×371
Prime Factorization of 670
2 | 670 |
5 | 335 |
67 | 67 |
1 |
Prime factors of 670 are 2, 5,67. Prime factorization of 670 in exponential form is:
670 = 21×51×671
Now multiplying the highest exponent prime factors to calculate the LCM of 666 and 670.
LCM(666,670) = 21×32×51×371×671
LCM(666,670) = 223110
Factors of 666
List of positive integer factors of 666 that divides 666 without a remainder.
1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666
Factors of 670
List of positive integer factors of 670 that divides 670 without a remainder.
1, 2, 5, 10, 67, 134, 335, 670
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 666 and 670, than apply into the LCM equation.
GCF(666,670) = 2
LCM(666,670) = ( 666 × 670) / 2
LCM(666,670) = 446220 / 2
LCM(666,670) = 223110
(i) The LCM of 670 and 666 is associative
LCM of 666 and 670 = LCM of 670 and 666
1. What is the LCM of 666 and 670?
Answer: LCM of 666 and 670 is 223110.
2. What are the Factors of 666?
Answer: Factors of 666 are 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666. There are 12 integers that are factors of 666. The greatest factor of 666 is 666.
3. What are the Factors of 670?
Answer: Factors of 670 are 1, 2, 5, 10, 67, 134, 335, 670. There are 8 integers that are factors of 670. The greatest factor of 670 is 670.
4. How to Find the LCM of 666 and 670?
Answer:
Least Common Multiple of 666 and 670 = 223110
Step 1: Find the prime factorization of 666
666 = 2 x 3 x 3 x 37
Step 2: Find the prime factorization of 670
670 = 2 x 5 x 67
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 223110 = 2 x 3 x 3 x 5 x 37 x 67
Step 4: Therefore, the least common multiple of 666 and 670 is 223110.