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 862 the smallest integer that is 738734 that is divisible by both numbers.
Least Common Multiple (LCM) of 857 and 862 is 738734.
LCM(857,862) = 738734
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 862. First we will calculate the prime factors of 857 and 862.
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 862
2 | 862 |
431 | 431 |
1 |
Prime factors of 862 are 2,431. Prime factorization of 862 in exponential form is:
862 = 21×4311
Now multiplying the highest exponent prime factors to calculate the LCM of 857 and 862.
LCM(857,862) = 21×4311×8571
LCM(857,862) = 738734
Factors of 857
List of positive integer factors of 857 that divides 857 without a remainder.
1, 857
Factors of 862
List of positive integer factors of 862 that divides 862 without a remainder.
1, 2, 431, 862
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 857 and 862, than apply into the LCM equation.
GCF(857,862) = 1
LCM(857,862) = ( 857 × 862) / 1
LCM(857,862) = 738734 / 1
LCM(857,862) = 738734
(i) The LCM of 862 and 857 is associative
LCM of 857 and 862 = LCM of 862 and 857
1. What is the LCM of 857 and 862?
Answer: LCM of 857 and 862 is 738734.
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 862?
Answer: Factors of 862 are 1, 2, 431, 862. There are 4 integers that are factors of 862. The greatest factor of 862 is 862.
4. How to Find the LCM of 857 and 862?
Answer:
Least Common Multiple of 857 and 862 = 738734
Step 1: Find the prime factorization of 857
857 = 857
Step 2: Find the prime factorization of 862
862 = 2 x 431
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 738734 = 2 x 431 x 857
Step 4: Therefore, the least common multiple of 857 and 862 is 738734.