Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 857 and 865 the smallest integer that is 741305 that is divisible by both numbers.
Least Common Multiple (LCM) of 857 and 865 is 741305.
LCM(857,865) = 741305
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 857 and 865. First we will calculate the prime factors of 857 and 865.
Prime Factorization of 857
857 | 857 |
1 |
Prime factors of 857 are 857. Prime factorization of 857 in exponential form is:
857 = 8571
Prime Factorization of 865
5 | 865 |
173 | 173 |
1 |
Prime factors of 865 are 5,173. Prime factorization of 865 in exponential form is:
865 = 51×1731
Now multiplying the highest exponent prime factors to calculate the LCM of 857 and 865.
LCM(857,865) = 51×1731×8571
LCM(857,865) = 741305
Factors of 857
List of positive integer factors of 857 that divides 857 without a remainder.
1, 857
Factors of 865
List of positive integer factors of 865 that divides 865 without a remainder.
1, 5, 173, 865
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 857 and 865, than apply into the LCM equation.
GCF(857,865) = 1
LCM(857,865) = ( 857 × 865) / 1
LCM(857,865) = 741305 / 1
LCM(857,865) = 741305
(i) The LCM of 865 and 857 is associative
LCM of 857 and 865 = LCM of 865 and 857
1. What is the LCM of 857 and 865?
Answer: LCM of 857 and 865 is 741305.
2. What are the Factors of 857?
Answer: Factors of 857 are 1, 857. There are 2 integers that are factors of 857. The greatest factor of 857 is 857.
3. What are the Factors of 865?
Answer: Factors of 865 are 1, 5, 173, 865. There are 4 integers that are factors of 865. The greatest factor of 865 is 865.
4. How to Find the LCM of 857 and 865?
Answer:
Least Common Multiple of 857 and 865 = 741305
Step 1: Find the prime factorization of 857
857 = 857
Step 2: Find the prime factorization of 865
865 = 5 x 173
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 741305 = 5 x 173 x 857
Step 4: Therefore, the least common multiple of 857 and 865 is 741305.