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 672 the smallest integer that is 74592 that is divisible by both numbers.
Least Common Multiple (LCM) of 666 and 672 is 74592.
LCM(666,672) = 74592
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 672. First we will calculate the prime factors of 666 and 672.
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 672
2 | 672 |
2 | 336 |
2 | 168 |
2 | 84 |
2 | 42 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 672 are 2, 3,7. Prime factorization of 672 in exponential form is:
672 = 25×31×71
Now multiplying the highest exponent prime factors to calculate the LCM of 666 and 672.
LCM(666,672) = 25×32×71×371
LCM(666,672) = 74592
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 672
List of positive integer factors of 672 that divides 672 without a remainder.
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 666 and 672, than apply into the LCM equation.
GCF(666,672) = 6
LCM(666,672) = ( 666 × 672) / 6
LCM(666,672) = 447552 / 6
LCM(666,672) = 74592
(i) The LCM of 672 and 666 is associative
LCM of 666 and 672 = LCM of 672 and 666
1. What is the LCM of 666 and 672?
Answer: LCM of 666 and 672 is 74592.
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 672?
Answer: Factors of 672 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672. There are 24 integers that are factors of 672. The greatest factor of 672 is 672.
4. How to Find the LCM of 666 and 672?
Answer:
Least Common Multiple of 666 and 672 = 74592
Step 1: Find the prime factorization of 666
666 = 2 x 3 x 3 x 37
Step 2: Find the prime factorization of 672
672 = 2 x 2 x 2 x 2 x 2 x 3 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 74592 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 37
Step 4: Therefore, the least common multiple of 666 and 672 is 74592.