Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 156 and 160 the smallest integer that is 6240 that is divisible by both numbers.
Least Common Multiple (LCM) of 156 and 160 is 6240.
LCM(156,160) = 6240
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 156 and 160. First we will calculate the prime factors of 156 and 160.
Prime Factorization of 156
2 | 156 |
2 | 78 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 156 are 2, 3,13. Prime factorization of 156 in exponential form is:
156 = 22×31×131
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
Now multiplying the highest exponent prime factors to calculate the LCM of 156 and 160.
LCM(156,160) = 25×31×51×131
LCM(156,160) = 6240
Factors of 156
List of positive integer factors of 156 that divides 156 without a remainder.
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 156 and 160, than apply into the LCM equation.
GCF(156,160) = 4
LCM(156,160) = ( 156 × 160) / 4
LCM(156,160) = 24960 / 4
LCM(156,160) = 6240
(i) The LCM of 160 and 156 is associative
LCM of 156 and 160 = LCM of 160 and 156
1. What is the LCM of 156 and 160?
Answer: LCM of 156 and 160 is 6240.
2. What are the Factors of 156?
Answer: Factors of 156 are 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156. There are 12 integers that are factors of 156. The greatest factor of 156 is 156.
3. 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.
4. How to Find the LCM of 156 and 160?
Answer:
Least Common Multiple of 156 and 160 = 6240
Step 1: Find the prime factorization of 156
156 = 2 x 2 x 3 x 13
Step 2: Find the prime factorization of 160
160 = 2 x 2 x 2 x 2 x 2 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 = 6240 = 2 x 2 x 2 x 2 x 2 x 3 x 5 x 13
Step 4: Therefore, the least common multiple of 156 and 160 is 6240.