Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 624 and 625 the smallest integer that is 390000 that is divisible by both numbers.
Least Common Multiple (LCM) of 624 and 625 is 390000.
LCM(624,625) = 390000
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 624 and 625. First we will calculate the prime factors of 624 and 625.
Prime Factorization of 624
2 | 624 |
2 | 312 |
2 | 156 |
2 | 78 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 624 are 2, 3,13. Prime factorization of 624 in exponential form is:
624 = 24×31×131
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 624 and 625.
LCM(624,625) = 24×31×54×131
LCM(624,625) = 390000
Factors of 624
List of positive integer factors of 624 that divides 624 without a remainder.
1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624
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 624 and 625, than apply into the LCM equation.
GCF(624,625) = 1
LCM(624,625) = ( 624 × 625) / 1
LCM(624,625) = 390000 / 1
LCM(624,625) = 390000
(i) The LCM of 625 and 624 is associative
LCM of 624 and 625 = LCM of 625 and 624
1. What is the LCM of 624 and 625?
Answer: LCM of 624 and 625 is 390000.
2. What are the Factors of 624?
Answer: Factors of 624 are 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624. There are 20 integers that are factors of 624. The greatest factor of 624 is 624.
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 624 and 625?
Answer:
Least Common Multiple of 624 and 625 = 390000
Step 1: Find the prime factorization of 624
624 = 2 x 2 x 2 x 2 x 3 x 13
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 = 390000 = 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 5 x 13
Step 4: Therefore, the least common multiple of 624 and 625 is 390000.