Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 31485 and 31489 the smallest integer that is 991431165 that is divisible by both numbers.
Least Common Multiple (LCM) of 31485 and 31489 is 991431165.
LCM(31485,31489) = 991431165
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 31485 and 31489. First we will calculate the prime factors of 31485 and 31489.
Prime Factorization of 31485
3 | 31485 |
5 | 10495 |
2099 | 2099 |
1 |
Prime factors of 31485 are 3, 5,2099. Prime factorization of 31485 in exponential form is:
31485 = 31×51×20991
Prime Factorization of 31489
31489 | 31489 |
1 |
Prime factors of 31489 are 31489. Prime factorization of 31489 in exponential form is:
31489 = 314891
Now multiplying the highest exponent prime factors to calculate the LCM of 31485 and 31489.
LCM(31485,31489) = 31×51×20991×314891
LCM(31485,31489) = 991431165
Factors of 31485
List of positive integer factors of 31485 that divides 31485 without a remainder.
1, 3, 5, 15, 2099, 6297, 10495, 31485
Factors of 31489
List of positive integer factors of 31489 that divides 31489 without a remainder.
1, 31489
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31485 and 31489, than apply into the LCM equation.
GCF(31485,31489) = 1
LCM(31485,31489) = ( 31485 × 31489) / 1
LCM(31485,31489) = 991431165 / 1
LCM(31485,31489) = 991431165
(i) The LCM of 31489 and 31485 is associative
LCM of 31485 and 31489 = LCM of 31489 and 31485
1. What is the LCM of 31485 and 31489?
Answer: LCM of 31485 and 31489 is 991431165.
2. What are the Factors of 31485?
Answer: Factors of 31485 are 1, 3, 5, 15, 2099, 6297, 10495, 31485. There are 8 integers that are factors of 31485. The greatest factor of 31485 is 31485.
3. What are the Factors of 31489?
Answer: Factors of 31489 are 1, 31489. There are 2 integers that are factors of 31489. The greatest factor of 31489 is 31489.
4. How to Find the LCM of 31485 and 31489?
Answer:
Least Common Multiple of 31485 and 31489 = 991431165
Step 1: Find the prime factorization of 31485
31485 = 3 x 5 x 2099
Step 2: Find the prime factorization of 31489
31489 = 31489
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 991431165 = 3 x 5 x 2099 x 31489
Step 4: Therefore, the least common multiple of 31485 and 31489 is 991431165.