Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 16421 and 16428 the smallest integer that is 269764188 that is divisible by both numbers.
Least Common Multiple (LCM) of 16421 and 16428 is 269764188.
LCM(16421,16428) = 269764188
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 16421 and 16428. First we will calculate the prime factors of 16421 and 16428.
Prime Factorization of 16421
16421 | 16421 |
1 |
Prime factors of 16421 are 16421. Prime factorization of 16421 in exponential form is:
16421 = 164211
Prime Factorization of 16428
2 | 16428 |
2 | 8214 |
3 | 4107 |
37 | 1369 |
37 | 37 |
1 |
Prime factors of 16428 are 2, 3,37. Prime factorization of 16428 in exponential form is:
16428 = 22×31×372
Now multiplying the highest exponent prime factors to calculate the LCM of 16421 and 16428.
LCM(16421,16428) = 22×31×372×164211
LCM(16421,16428) = 269764188
Factors of 16421
List of positive integer factors of 16421 that divides 16421 without a remainder.
1, 16421
Factors of 16428
List of positive integer factors of 16428 that divides 16428 without a remainder.
1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 1369, 2738, 4107, 5476, 8214, 16428
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16421 and 16428, than apply into the LCM equation.
GCF(16421,16428) = 1
LCM(16421,16428) = ( 16421 × 16428) / 1
LCM(16421,16428) = 269764188 / 1
LCM(16421,16428) = 269764188
(i) The LCM of 16428 and 16421 is associative
LCM of 16421 and 16428 = LCM of 16428 and 16421
1. What is the LCM of 16421 and 16428?
Answer: LCM of 16421 and 16428 is 269764188.
2. What are the Factors of 16421?
Answer: Factors of 16421 are 1, 16421. There are 2 integers that are factors of 16421. The greatest factor of 16421 is 16421.
3. What are the Factors of 16428?
Answer: Factors of 16428 are 1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 1369, 2738, 4107, 5476, 8214, 16428. There are 18 integers that are factors of 16428. The greatest factor of 16428 is 16428.
4. How to Find the LCM of 16421 and 16428?
Answer:
Least Common Multiple of 16421 and 16428 = 269764188
Step 1: Find the prime factorization of 16421
16421 = 16421
Step 2: Find the prime factorization of 16428
16428 = 2 x 2 x 3 x 37 x 37
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 269764188 = 2 x 2 x 3 x 37 x 37 x 16421
Step 4: Therefore, the least common multiple of 16421 and 16428 is 269764188.