Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 683 and 687 the smallest integer that is 469221 that is divisible by both numbers.
Least Common Multiple (LCM) of 683 and 687 is 469221.
LCM(683,687) = 469221
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 683 and 687. First we will calculate the prime factors of 683 and 687.
Prime Factorization of 683
683 | 683 |
1 |
Prime factors of 683 are 683. Prime factorization of 683 in exponential form is:
683 = 6831
Prime Factorization of 687
3 | 687 |
229 | 229 |
1 |
Prime factors of 687 are 3,229. Prime factorization of 687 in exponential form is:
687 = 31×2291
Now multiplying the highest exponent prime factors to calculate the LCM of 683 and 687.
LCM(683,687) = 31×2291×6831
LCM(683,687) = 469221
Factors of 683
List of positive integer factors of 683 that divides 683 without a remainder.
1, 683
Factors of 687
List of positive integer factors of 687 that divides 687 without a remainder.
1, 3, 229, 687
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 683 and 687, than apply into the LCM equation.
GCF(683,687) = 1
LCM(683,687) = ( 683 × 687) / 1
LCM(683,687) = 469221 / 1
LCM(683,687) = 469221
(i) The LCM of 687 and 683 is associative
LCM of 683 and 687 = LCM of 687 and 683
1. What is the LCM of 683 and 687?
Answer: LCM of 683 and 687 is 469221.
2. What are the Factors of 683?
Answer: Factors of 683 are 1, 683. There are 2 integers that are factors of 683. The greatest factor of 683 is 683.
3. What are the Factors of 687?
Answer: Factors of 687 are 1, 3, 229, 687. There are 4 integers that are factors of 687. The greatest factor of 687 is 687.
4. How to Find the LCM of 683 and 687?
Answer:
Least Common Multiple of 683 and 687 = 469221
Step 1: Find the prime factorization of 683
683 = 683
Step 2: Find the prime factorization of 687
687 = 3 x 229
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 469221 = 3 x 229 x 683
Step 4: Therefore, the least common multiple of 683 and 687 is 469221.