Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 158 and 162 the smallest integer that is 12798 that is divisible by both numbers.
Least Common Multiple (LCM) of 158 and 162 is 12798.
LCM(158,162) = 12798
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 158 and 162. First we will calculate the prime factors of 158 and 162.
Prime Factorization of 158
2 | 158 |
79 | 79 |
1 |
Prime factors of 158 are 2,79. Prime factorization of 158 in exponential form is:
158 = 21×791
Prime Factorization of 162
2 | 162 |
3 | 81 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 162 are 2,3. Prime factorization of 162 in exponential form is:
162 = 21×34
Now multiplying the highest exponent prime factors to calculate the LCM of 158 and 162.
LCM(158,162) = 21×34×791
LCM(158,162) = 12798
Factors of 158
List of positive integer factors of 158 that divides 158 without a remainder.
1, 2, 79, 158
Factors of 162
List of positive integer factors of 162 that divides 162 without a remainder.
1, 2, 3, 6, 9, 18, 27, 54, 81, 162
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 158 and 162, than apply into the LCM equation.
GCF(158,162) = 2
LCM(158,162) = ( 158 × 162) / 2
LCM(158,162) = 25596 / 2
LCM(158,162) = 12798
(i) The LCM of 162 and 158 is associative
LCM of 158 and 162 = LCM of 162 and 158
1. What is the LCM of 158 and 162?
Answer: LCM of 158 and 162 is 12798.
2. What are the Factors of 158?
Answer: Factors of 158 are 1, 2, 79, 158. There are 4 integers that are factors of 158. The greatest factor of 158 is 158.
3. What are the Factors of 162?
Answer: Factors of 162 are 1, 2, 3, 6, 9, 18, 27, 54, 81, 162. There are 10 integers that are factors of 162. The greatest factor of 162 is 162.
4. How to Find the LCM of 158 and 162?
Answer:
Least Common Multiple of 158 and 162 = 12798
Step 1: Find the prime factorization of 158
158 = 2 x 79
Step 2: Find the prime factorization of 162
162 = 2 x 3 x 3 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 12798 = 2 x 3 x 3 x 3 x 3 x 79
Step 4: Therefore, the least common multiple of 158 and 162 is 12798.