Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 16 and 23 the smallest integer that is 368 that is divisible by both numbers.
Least Common Multiple (LCM) of 16 and 23 is 368.
LCM(16,23) = 368
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 16 and 23. First we will calculate the prime factors of 16 and 23.
Prime Factorization of 16
2 | 16 |
2 | 8 |
2 | 4 |
2 | 2 |
1 |
Prime factors of 16 are 2. Prime factorization of 16 in exponential form is:
16 = 24
Prime Factorization of 23
23 | 23 |
1 |
Prime factors of 23 are 23. Prime factorization of 23 in exponential form is:
23 = 231
Now multiplying the highest exponent prime factors to calculate the LCM of 16 and 23.
LCM(16,23) = 24×231
LCM(16,23) = 368
Factors of 16
List of positive integer factors of 16 that divides 16 without a remainder.
1, 2, 4, 8, 16
Factors of 23
List of positive integer factors of 23 that divides 23 without a remainder.
1, 23
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16 and 23, than apply into the LCM equation.
GCF(16,23) = 1
LCM(16,23) = ( 16 × 23) / 1
LCM(16,23) = 368 / 1
LCM(16,23) = 368
(i) The LCM of 23 and 16 is associative
LCM of 16 and 23 = LCM of 23 and 16
1. What is the LCM of 16 and 23?
Answer: LCM of 16 and 23 is 368.
2. What are the Factors of 16?
Answer: Factors of 16 are 1, 2, 4, 8, 16. There are 5 integers that are factors of 16. The greatest factor of 16 is 16.
3. What are the Factors of 23?
Answer: Factors of 23 are 1, 23. There are 2 integers that are factors of 23. The greatest factor of 23 is 23.
4. How to Find the LCM of 16 and 23?
Answer:
Least Common Multiple of 16 and 23 = 368
Step 1: Find the prime factorization of 16
16 = 2 x 2 x 2 x 2
Step 2: Find the prime factorization of 23
23 = 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 368 = 2 x 2 x 2 x 2 x 23
Step 4: Therefore, the least common multiple of 16 and 23 is 368.