Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 808 and 813 the smallest integer that is 656904 that is divisible by both numbers.
Least Common Multiple (LCM) of 808 and 813 is 656904.
LCM(808,813) = 656904
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 808 and 813. First we will calculate the prime factors of 808 and 813.
Prime Factorization of 808
2 | 808 |
2 | 404 |
2 | 202 |
101 | 101 |
1 |
Prime factors of 808 are 2,101. Prime factorization of 808 in exponential form is:
808 = 23×1011
Prime Factorization of 813
3 | 813 |
271 | 271 |
1 |
Prime factors of 813 are 3,271. Prime factorization of 813 in exponential form is:
813 = 31×2711
Now multiplying the highest exponent prime factors to calculate the LCM of 808 and 813.
LCM(808,813) = 23×31×1011×2711
LCM(808,813) = 656904
Factors of 808
List of positive integer factors of 808 that divides 808 without a remainder.
1, 2, 4, 8, 101, 202, 404, 808
Factors of 813
List of positive integer factors of 813 that divides 813 without a remainder.
1, 3, 271, 813
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 808 and 813, than apply into the LCM equation.
GCF(808,813) = 1
LCM(808,813) = ( 808 × 813) / 1
LCM(808,813) = 656904 / 1
LCM(808,813) = 656904
(i) The LCM of 813 and 808 is associative
LCM of 808 and 813 = LCM of 813 and 808
1. What is the LCM of 808 and 813?
Answer: LCM of 808 and 813 is 656904.
2. What are the Factors of 808?
Answer: Factors of 808 are 1, 2, 4, 8, 101, 202, 404, 808. There are 8 integers that are factors of 808. The greatest factor of 808 is 808.
3. What are the Factors of 813?
Answer: Factors of 813 are 1, 3, 271, 813. There are 4 integers that are factors of 813. The greatest factor of 813 is 813.
4. How to Find the LCM of 808 and 813?
Answer:
Least Common Multiple of 808 and 813 = 656904
Step 1: Find the prime factorization of 808
808 = 2 x 2 x 2 x 101
Step 2: Find the prime factorization of 813
813 = 3 x 271
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 656904 = 2 x 2 x 2 x 3 x 101 x 271
Step 4: Therefore, the least common multiple of 808 and 813 is 656904.