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 21506 the smallest integer that is 231167994 that is divisible by both numbers.
Least Common Multiple (LCM) of 21498 and 21506 is 231167994.
LCM(21498,21506) = 231167994
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 21506. First we will calculate the prime factors of 21498 and 21506.
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 21506
2 | 21506 |
10753 | 10753 |
1 |
Prime factors of 21506 are 2,10753. Prime factorization of 21506 in exponential form is:
21506 = 21×107531
Now multiplying the highest exponent prime factors to calculate the LCM of 21498 and 21506.
LCM(21498,21506) = 21×31×35831×107531
LCM(21498,21506) = 231167994
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 21506
List of positive integer factors of 21506 that divides 21506 without a remainder.
1, 2, 10753, 21506
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21498 and 21506, than apply into the LCM equation.
GCF(21498,21506) = 2
LCM(21498,21506) = ( 21498 × 21506) / 2
LCM(21498,21506) = 462335988 / 2
LCM(21498,21506) = 231167994
(i) The LCM of 21506 and 21498 is associative
LCM of 21498 and 21506 = LCM of 21506 and 21498
1. What is the LCM of 21498 and 21506?
Answer: LCM of 21498 and 21506 is 231167994.
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 21506?
Answer: Factors of 21506 are 1, 2, 10753, 21506. There are 4 integers that are factors of 21506. The greatest factor of 21506 is 21506.
4. How to Find the LCM of 21498 and 21506?
Answer:
Least Common Multiple of 21498 and 21506 = 231167994
Step 1: Find the prime factorization of 21498
21498 = 2 x 3 x 3583
Step 2: Find the prime factorization of 21506
21506 = 2 x 10753
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 231167994 = 2 x 3 x 3583 x 10753
Step 4: Therefore, the least common multiple of 21498 and 21506 is 231167994.