Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 623 and 625 the smallest integer that is 389375 that is divisible by both numbers.
Least Common Multiple (LCM) of 623 and 625 is 389375.
LCM(623,625) = 389375
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 623 and 625. First we will calculate the prime factors of 623 and 625.
Prime Factorization of 623
7 | 623 |
89 | 89 |
1 |
Prime factors of 623 are 7,89. Prime factorization of 623 in exponential form is:
623 = 71×891
Prime Factorization of 625
5 | 625 |
5 | 125 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 625 are 5. Prime factorization of 625 in exponential form is:
625 = 54
Now multiplying the highest exponent prime factors to calculate the LCM of 623 and 625.
LCM(623,625) = 54×71×891
LCM(623,625) = 389375
Factors of 623
List of positive integer factors of 623 that divides 623 without a remainder.
1, 7, 89, 623
Factors of 625
List of positive integer factors of 625 that divides 625 without a remainder.
1, 5, 25, 125, 625
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 623 and 625, than apply into the LCM equation.
GCF(623,625) = 1
LCM(623,625) = ( 623 × 625) / 1
LCM(623,625) = 389375 / 1
LCM(623,625) = 389375
(i) The LCM of 625 and 623 is associative
LCM of 623 and 625 = LCM of 625 and 623
1. What is the LCM of 623 and 625?
Answer: LCM of 623 and 625 is 389375.
2. What are the Factors of 623?
Answer: Factors of 623 are 1, 7, 89, 623. There are 4 integers that are factors of 623. The greatest factor of 623 is 623.
3. What are the Factors of 625?
Answer: Factors of 625 are 1, 5, 25, 125, 625. There are 5 integers that are factors of 625. The greatest factor of 625 is 625.
4. How to Find the LCM of 623 and 625?
Answer:
Least Common Multiple of 623 and 625 = 389375
Step 1: Find the prime factorization of 623
623 = 7 x 89
Step 2: Find the prime factorization of 625
625 = 5 x 5 x 5 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 389375 = 5 x 5 x 5 x 5 x 7 x 89
Step 4: Therefore, the least common multiple of 623 and 625 is 389375.