Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 670 and 675 the smallest integer that is 90450 that is divisible by both numbers.
Least Common Multiple (LCM) of 670 and 675 is 90450.
LCM(670,675) = 90450
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 670 and 675. First we will calculate the prime factors of 670 and 675.
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
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 670 and 675.
LCM(670,675) = 21×33×52×671
LCM(670,675) = 90450
Factors of 670
List of positive integer factors of 670 that divides 670 without a remainder.
1, 2, 5, 10, 67, 134, 335, 670
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 670 and 675, than apply into the LCM equation.
GCF(670,675) = 5
LCM(670,675) = ( 670 × 675) / 5
LCM(670,675) = 452250 / 5
LCM(670,675) = 90450
(i) The LCM of 675 and 670 is associative
LCM of 670 and 675 = LCM of 675 and 670
1. What is the LCM of 670 and 675?
Answer: LCM of 670 and 675 is 90450.
2. 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.
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 670 and 675?
Answer:
Least Common Multiple of 670 and 675 = 90450
Step 1: Find the prime factorization of 670
670 = 2 x 5 x 67
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 = 90450 = 2 x 3 x 3 x 3 x 5 x 5 x 67
Step 4: Therefore, the least common multiple of 670 and 675 is 90450.