Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 849 and 856 the smallest integer that is 726744 that is divisible by both numbers.
Least Common Multiple (LCM) of 849 and 856 is 726744.
LCM(849,856) = 726744
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 849 and 856. First we will calculate the prime factors of 849 and 856.
Prime Factorization of 849
3 | 849 |
283 | 283 |
1 |
Prime factors of 849 are 3,283. Prime factorization of 849 in exponential form is:
849 = 31×2831
Prime Factorization of 856
2 | 856 |
2 | 428 |
2 | 214 |
107 | 107 |
1 |
Prime factors of 856 are 2,107. Prime factorization of 856 in exponential form is:
856 = 23×1071
Now multiplying the highest exponent prime factors to calculate the LCM of 849 and 856.
LCM(849,856) = 23×31×1071×2831
LCM(849,856) = 726744
Factors of 849
List of positive integer factors of 849 that divides 849 without a remainder.
1, 3, 283, 849
Factors of 856
List of positive integer factors of 856 that divides 856 without a remainder.
1, 2, 4, 8, 107, 214, 428, 856
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 849 and 856, than apply into the LCM equation.
GCF(849,856) = 1
LCM(849,856) = ( 849 × 856) / 1
LCM(849,856) = 726744 / 1
LCM(849,856) = 726744
(i) The LCM of 856 and 849 is associative
LCM of 849 and 856 = LCM of 856 and 849
1. What is the LCM of 849 and 856?
Answer: LCM of 849 and 856 is 726744.
2. What are the Factors of 849?
Answer: Factors of 849 are 1, 3, 283, 849. There are 4 integers that are factors of 849. The greatest factor of 849 is 849.
3. What are the Factors of 856?
Answer: Factors of 856 are 1, 2, 4, 8, 107, 214, 428, 856. There are 8 integers that are factors of 856. The greatest factor of 856 is 856.
4. How to Find the LCM of 849 and 856?
Answer:
Least Common Multiple of 849 and 856 = 726744
Step 1: Find the prime factorization of 849
849 = 3 x 283
Step 2: Find the prime factorization of 856
856 = 2 x 2 x 2 x 107
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 726744 = 2 x 2 x 2 x 3 x 107 x 283
Step 4: Therefore, the least common multiple of 849 and 856 is 726744.