Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 168 and 173 the smallest integer that is 29064 that is divisible by both numbers.
Least Common Multiple (LCM) of 168 and 173 is 29064.
LCM(168,173) = 29064
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 168 and 173. First we will calculate the prime factors of 168 and 173.
Prime Factorization of 168
2 | 168 |
2 | 84 |
2 | 42 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 168 are 2, 3,7. Prime factorization of 168 in exponential form is:
168 = 23×31×71
Prime Factorization of 173
173 | 173 |
1 |
Prime factors of 173 are 173. Prime factorization of 173 in exponential form is:
173 = 1731
Now multiplying the highest exponent prime factors to calculate the LCM of 168 and 173.
LCM(168,173) = 23×31×71×1731
LCM(168,173) = 29064
Factors of 168
List of positive integer factors of 168 that divides 168 without a remainder.
1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
Factors of 173
List of positive integer factors of 173 that divides 173 without a remainder.
1, 173
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 168 and 173, than apply into the LCM equation.
GCF(168,173) = 1
LCM(168,173) = ( 168 × 173) / 1
LCM(168,173) = 29064 / 1
LCM(168,173) = 29064
(i) The LCM of 173 and 168 is associative
LCM of 168 and 173 = LCM of 173 and 168
1. What is the LCM of 168 and 173?
Answer: LCM of 168 and 173 is 29064.
2. What are the Factors of 168?
Answer: Factors of 168 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168. There are 16 integers that are factors of 168. The greatest factor of 168 is 168.
3. What are the Factors of 173?
Answer: Factors of 173 are 1, 173. There are 2 integers that are factors of 173. The greatest factor of 173 is 173.
4. How to Find the LCM of 168 and 173?
Answer:
Least Common Multiple of 168 and 173 = 29064
Step 1: Find the prime factorization of 168
168 = 2 x 2 x 2 x 3 x 7
Step 2: Find the prime factorization of 173
173 = 173
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 29064 = 2 x 2 x 2 x 3 x 7 x 173
Step 4: Therefore, the least common multiple of 168 and 173 is 29064.