Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 821 and 826 the smallest integer that is 678146 that is divisible by both numbers.
Least Common Multiple (LCM) of 821 and 826 is 678146.
LCM(821,826) = 678146
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 821 and 826. First we will calculate the prime factors of 821 and 826.
Prime Factorization of 821
821 | 821 |
1 |
Prime factors of 821 are 821. Prime factorization of 821 in exponential form is:
821 = 8211
Prime Factorization of 826
2 | 826 |
7 | 413 |
59 | 59 |
1 |
Prime factors of 826 are 2, 7,59. Prime factorization of 826 in exponential form is:
826 = 21×71×591
Now multiplying the highest exponent prime factors to calculate the LCM of 821 and 826.
LCM(821,826) = 21×71×591×8211
LCM(821,826) = 678146
Factors of 821
List of positive integer factors of 821 that divides 821 without a remainder.
1, 821
Factors of 826
List of positive integer factors of 826 that divides 826 without a remainder.
1, 2, 7, 14, 59, 118, 413, 826
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 821 and 826, than apply into the LCM equation.
GCF(821,826) = 1
LCM(821,826) = ( 821 × 826) / 1
LCM(821,826) = 678146 / 1
LCM(821,826) = 678146
(i) The LCM of 826 and 821 is associative
LCM of 821 and 826 = LCM of 826 and 821
1. What is the LCM of 821 and 826?
Answer: LCM of 821 and 826 is 678146.
2. What are the Factors of 821?
Answer: Factors of 821 are 1, 821. There are 2 integers that are factors of 821. The greatest factor of 821 is 821.
3. What are the Factors of 826?
Answer: Factors of 826 are 1, 2, 7, 14, 59, 118, 413, 826. There are 8 integers that are factors of 826. The greatest factor of 826 is 826.
4. How to Find the LCM of 821 and 826?
Answer:
Least Common Multiple of 821 and 826 = 678146
Step 1: Find the prime factorization of 821
821 = 821
Step 2: Find the prime factorization of 826
826 = 2 x 7 x 59
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 678146 = 2 x 7 x 59 x 821
Step 4: Therefore, the least common multiple of 821 and 826 is 678146.