Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 161 and 163 the smallest integer that is 26243 that is divisible by both numbers.
Least Common Multiple (LCM) of 161 and 163 is 26243.
LCM(161,163) = 26243
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 161 and 163. First we will calculate the prime factors of 161 and 163.
Prime Factorization of 161
7 | 161 |
23 | 23 |
1 |
Prime factors of 161 are 7,23. Prime factorization of 161 in exponential form is:
161 = 71×231
Prime Factorization of 163
163 | 163 |
1 |
Prime factors of 163 are 163. Prime factorization of 163 in exponential form is:
163 = 1631
Now multiplying the highest exponent prime factors to calculate the LCM of 161 and 163.
LCM(161,163) = 71×231×1631
LCM(161,163) = 26243
Factors of 161
List of positive integer factors of 161 that divides 161 without a remainder.
1, 7, 23, 161
Factors of 163
List of positive integer factors of 163 that divides 163 without a remainder.
1, 163
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 161 and 163, than apply into the LCM equation.
GCF(161,163) = 1
LCM(161,163) = ( 161 × 163) / 1
LCM(161,163) = 26243 / 1
LCM(161,163) = 26243
(i) The LCM of 163 and 161 is associative
LCM of 161 and 163 = LCM of 163 and 161
1. What is the LCM of 161 and 163?
Answer: LCM of 161 and 163 is 26243.
2. What are the Factors of 161?
Answer: Factors of 161 are 1, 7, 23, 161. There are 4 integers that are factors of 161. The greatest factor of 161 is 161.
3. What are the Factors of 163?
Answer: Factors of 163 are 1, 163. There are 2 integers that are factors of 163. The greatest factor of 163 is 163.
4. How to Find the LCM of 161 and 163?
Answer:
Least Common Multiple of 161 and 163 = 26243
Step 1: Find the prime factorization of 161
161 = 7 x 23
Step 2: Find the prime factorization of 163
163 = 163
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 26243 = 7 x 23 x 163
Step 4: Therefore, the least common multiple of 161 and 163 is 26243.