Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 21498 and 21503 the smallest integer that is 462271494 that is divisible by both numbers.
Least Common Multiple (LCM) of 21498 and 21503 is 462271494.
LCM(21498,21503) = 462271494
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 21498 and 21503. First we will calculate the prime factors of 21498 and 21503.
Prime Factorization of 21498
2 | 21498 |
3 | 10749 |
3583 | 3583 |
1 |
Prime factors of 21498 are 2, 3,3583. Prime factorization of 21498 in exponential form is:
21498 = 21×31×35831
Prime Factorization of 21503
21503 | 21503 |
1 |
Prime factors of 21503 are 21503. Prime factorization of 21503 in exponential form is:
21503 = 215031
Now multiplying the highest exponent prime factors to calculate the LCM of 21498 and 21503.
LCM(21498,21503) = 21×31×35831×215031
LCM(21498,21503) = 462271494
Factors of 21498
List of positive integer factors of 21498 that divides 21498 without a remainder.
1, 2, 3, 6, 3583, 7166, 10749, 21498
Factors of 21503
List of positive integer factors of 21503 that divides 21503 without a remainder.
1, 21503
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21498 and 21503, than apply into the LCM equation.
GCF(21498,21503) = 1
LCM(21498,21503) = ( 21498 × 21503) / 1
LCM(21498,21503) = 462271494 / 1
LCM(21498,21503) = 462271494
(i) The LCM of 21503 and 21498 is associative
LCM of 21498 and 21503 = LCM of 21503 and 21498
1. What is the LCM of 21498 and 21503?
Answer: LCM of 21498 and 21503 is 462271494.
2. What are the Factors of 21498?
Answer: Factors of 21498 are 1, 2, 3, 6, 3583, 7166, 10749, 21498. There are 8 integers that are factors of 21498. The greatest factor of 21498 is 21498.
3. What are the Factors of 21503?
Answer: Factors of 21503 are 1, 21503. There are 2 integers that are factors of 21503. The greatest factor of 21503 is 21503.
4. How to Find the LCM of 21498 and 21503?
Answer:
Least Common Multiple of 21498 and 21503 = 462271494
Step 1: Find the prime factorization of 21498
21498 = 2 x 3 x 3583
Step 2: Find the prime factorization of 21503
21503 = 21503
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 462271494 = 2 x 3 x 3583 x 21503
Step 4: Therefore, the least common multiple of 21498 and 21503 is 462271494.