Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 672 and 675 the smallest integer that is 151200 that is divisible by both numbers.
Least Common Multiple (LCM) of 672 and 675 is 151200.
LCM(672,675) = 151200
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 672 and 675. First we will calculate the prime factors of 672 and 675.
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
Prime Factorization of 675
3 | 675 |
3 | 225 |
3 | 75 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 675 are 3,5. Prime factorization of 675 in exponential form is:
675 = 33×52
Now multiplying the highest exponent prime factors to calculate the LCM of 672 and 675.
LCM(672,675) = 25×33×52×71
LCM(672,675) = 151200
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
Factors of 675
List of positive integer factors of 675 that divides 675 without a remainder.
1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 672 and 675, than apply into the LCM equation.
GCF(672,675) = 3
LCM(672,675) = ( 672 × 675) / 3
LCM(672,675) = 453600 / 3
LCM(672,675) = 151200
(i) The LCM of 675 and 672 is associative
LCM of 672 and 675 = LCM of 675 and 672
1. What is the LCM of 672 and 675?
Answer: LCM of 672 and 675 is 151200.
2. 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.
3. What are the Factors of 675?
Answer: Factors of 675 are 1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675. There are 12 integers that are factors of 675. The greatest factor of 675 is 675.
4. How to Find the LCM of 672 and 675?
Answer:
Least Common Multiple of 672 and 675 = 151200
Step 1: Find the prime factorization of 672
672 = 2 x 2 x 2 x 2 x 2 x 3 x 7
Step 2: Find the prime factorization of 675
675 = 3 x 3 x 3 x 5 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 151200 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 5 x 7
Step 4: Therefore, the least common multiple of 672 and 675 is 151200.