Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 824 and 831 the smallest integer that is 684744 that is divisible by both numbers.
Least Common Multiple (LCM) of 824 and 831 is 684744.
LCM(824,831) = 684744
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 824 and 831. First we will calculate the prime factors of 824 and 831.
Prime Factorization of 824
2 | 824 |
2 | 412 |
2 | 206 |
103 | 103 |
1 |
Prime factors of 824 are 2,103. Prime factorization of 824 in exponential form is:
824 = 23×1031
Prime Factorization of 831
3 | 831 |
277 | 277 |
1 |
Prime factors of 831 are 3,277. Prime factorization of 831 in exponential form is:
831 = 31×2771
Now multiplying the highest exponent prime factors to calculate the LCM of 824 and 831.
LCM(824,831) = 23×31×1031×2771
LCM(824,831) = 684744
Factors of 824
List of positive integer factors of 824 that divides 824 without a remainder.
1, 2, 4, 8, 103, 206, 412, 824
Factors of 831
List of positive integer factors of 831 that divides 831 without a remainder.
1, 3, 277, 831
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 824 and 831, than apply into the LCM equation.
GCF(824,831) = 1
LCM(824,831) = ( 824 × 831) / 1
LCM(824,831) = 684744 / 1
LCM(824,831) = 684744
(i) The LCM of 831 and 824 is associative
LCM of 824 and 831 = LCM of 831 and 824
1. What is the LCM of 824 and 831?
Answer: LCM of 824 and 831 is 684744.
2. What are the Factors of 824?
Answer: Factors of 824 are 1, 2, 4, 8, 103, 206, 412, 824. There are 8 integers that are factors of 824. The greatest factor of 824 is 824.
3. What are the Factors of 831?
Answer: Factors of 831 are 1, 3, 277, 831. There are 4 integers that are factors of 831. The greatest factor of 831 is 831.
4. How to Find the LCM of 824 and 831?
Answer:
Least Common Multiple of 824 and 831 = 684744
Step 1: Find the prime factorization of 824
824 = 2 x 2 x 2 x 103
Step 2: Find the prime factorization of 831
831 = 3 x 277
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 684744 = 2 x 2 x 2 x 3 x 103 x 277
Step 4: Therefore, the least common multiple of 824 and 831 is 684744.