Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1624 and 1631 the smallest integer that is 378392 that is divisible by both numbers.
Least Common Multiple (LCM) of 1624 and 1631 is 378392.
LCM(1624,1631) = 378392
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 1624 and 1631. First we will calculate the prime factors of 1624 and 1631.
Prime Factorization of 1624
2 | 1624 |
2 | 812 |
2 | 406 |
7 | 203 |
29 | 29 |
1 |
Prime factors of 1624 are 2, 7,29. Prime factorization of 1624 in exponential form is:
1624 = 23×71×291
Prime Factorization of 1631
7 | 1631 |
233 | 233 |
1 |
Prime factors of 1631 are 7,233. Prime factorization of 1631 in exponential form is:
1631 = 71×2331
Now multiplying the highest exponent prime factors to calculate the LCM of 1624 and 1631.
LCM(1624,1631) = 23×71×291×2331
LCM(1624,1631) = 378392
Factors of 1624
List of positive integer factors of 1624 that divides 1624 without a remainder.
1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624
Factors of 1631
List of positive integer factors of 1631 that divides 1631 without a remainder.
1, 7, 233, 1631
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1624 and 1631, than apply into the LCM equation.
GCF(1624,1631) = 7
LCM(1624,1631) = ( 1624 × 1631) / 7
LCM(1624,1631) = 2648744 / 7
LCM(1624,1631) = 378392
(i) The LCM of 1631 and 1624 is associative
LCM of 1624 and 1631 = LCM of 1631 and 1624
1. What is the LCM of 1624 and 1631?
Answer: LCM of 1624 and 1631 is 378392.
2. What are the Factors of 1624?
Answer: Factors of 1624 are 1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624. There are 16 integers that are factors of 1624. The greatest factor of 1624 is 1624.
3. What are the Factors of 1631?
Answer: Factors of 1631 are 1, 7, 233, 1631. There are 4 integers that are factors of 1631. The greatest factor of 1631 is 1631.
4. How to Find the LCM of 1624 and 1631?
Answer:
Least Common Multiple of 1624 and 1631 = 378392
Step 1: Find the prime factorization of 1624
1624 = 2 x 2 x 2 x 7 x 29
Step 2: Find the prime factorization of 1631
1631 = 7 x 233
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 378392 = 2 x 2 x 2 x 7 x 29 x 233
Step 4: Therefore, the least common multiple of 1624 and 1631 is 378392.