Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 160 and 168 the smallest integer that is 3360 that is divisible by both numbers.
Least Common Multiple (LCM) of 160 and 168 is 3360.
LCM(160,168) = 3360
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 160 and 168. First we will calculate the prime factors of 160 and 168.
Prime Factorization of 160
2 | 160 |
2 | 80 |
2 | 40 |
2 | 20 |
2 | 10 |
5 | 5 |
1 |
Prime factors of 160 are 2,5. Prime factorization of 160 in exponential form is:
160 = 25×51
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
Now multiplying the highest exponent prime factors to calculate the LCM of 160 and 168.
LCM(160,168) = 25×31×51×71
LCM(160,168) = 3360
Factors of 160
List of positive integer factors of 160 that divides 160 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 160 and 168, than apply into the LCM equation.
GCF(160,168) = 8
LCM(160,168) = ( 160 × 168) / 8
LCM(160,168) = 26880 / 8
LCM(160,168) = 3360
(i) The LCM of 168 and 160 is associative
LCM of 160 and 168 = LCM of 168 and 160
1. What is the LCM of 160 and 168?
Answer: LCM of 160 and 168 is 3360.
2. What are the Factors of 160?
Answer: Factors of 160 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160. There are 12 integers that are factors of 160. The greatest factor of 160 is 160.
3. 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.
4. How to Find the LCM of 160 and 168?
Answer:
Least Common Multiple of 160 and 168 = 3360
Step 1: Find the prime factorization of 160
160 = 2 x 2 x 2 x 2 x 2 x 5
Step 2: Find the prime factorization of 168
168 = 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 = 3360 = 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7
Step 4: Therefore, the least common multiple of 160 and 168 is 3360.