Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 822 and 828 the smallest integer that is 113436 that is divisible by both numbers.
Least Common Multiple (LCM) of 822 and 828 is 113436.
LCM(822,828) = 113436
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 822 and 828. First we will calculate the prime factors of 822 and 828.
Prime Factorization of 822
2 | 822 |
3 | 411 |
137 | 137 |
1 |
Prime factors of 822 are 2, 3,137. Prime factorization of 822 in exponential form is:
822 = 21×31×1371
Prime Factorization of 828
2 | 828 |
2 | 414 |
3 | 207 |
3 | 69 |
23 | 23 |
1 |
Prime factors of 828 are 2, 3,23. Prime factorization of 828 in exponential form is:
828 = 22×32×231
Now multiplying the highest exponent prime factors to calculate the LCM of 822 and 828.
LCM(822,828) = 22×32×231×1371
LCM(822,828) = 113436
Factors of 822
List of positive integer factors of 822 that divides 822 without a remainder.
1, 2, 3, 6, 137, 274, 411, 822
Factors of 828
List of positive integer factors of 828 that divides 828 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 822 and 828, than apply into the LCM equation.
GCF(822,828) = 6
LCM(822,828) = ( 822 × 828) / 6
LCM(822,828) = 680616 / 6
LCM(822,828) = 113436
(i) The LCM of 828 and 822 is associative
LCM of 822 and 828 = LCM of 828 and 822
1. What is the LCM of 822 and 828?
Answer: LCM of 822 and 828 is 113436.
2. What are the Factors of 822?
Answer: Factors of 822 are 1, 2, 3, 6, 137, 274, 411, 822. There are 8 integers that are factors of 822. The greatest factor of 822 is 822.
3. What are the Factors of 828?
Answer: Factors of 828 are 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828. There are 18 integers that are factors of 828. The greatest factor of 828 is 828.
4. How to Find the LCM of 822 and 828?
Answer:
Least Common Multiple of 822 and 828 = 113436
Step 1: Find the prime factorization of 822
822 = 2 x 3 x 137
Step 2: Find the prime factorization of 828
828 = 2 x 2 x 3 x 3 x 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 113436 = 2 x 2 x 3 x 3 x 23 x 137
Step 4: Therefore, the least common multiple of 822 and 828 is 113436.