Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 985 and 990 the smallest integer that is 195030 that is divisible by both numbers.
Least Common Multiple (LCM) of 985 and 990 is 195030.
LCM(985,990) = 195030
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 985 and 990. First we will calculate the prime factors of 985 and 990.
Prime Factorization of 985
5 | 985 |
197 | 197 |
1 |
Prime factors of 985 are 5,197. Prime factorization of 985 in exponential form is:
985 = 51×1971
Prime Factorization of 990
2 | 990 |
3 | 495 |
3 | 165 |
5 | 55 |
11 | 11 |
1 |
Prime factors of 990 are 2, 3, 5,11. Prime factorization of 990 in exponential form is:
990 = 21×32×51×111
Now multiplying the highest exponent prime factors to calculate the LCM of 985 and 990.
LCM(985,990) = 21×32×51×111×1971
LCM(985,990) = 195030
Factors of 985
List of positive integer factors of 985 that divides 985 without a remainder.
1, 5, 197, 985
Factors of 990
List of positive integer factors of 990 that divides 990 without a remainder.
1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 985 and 990, than apply into the LCM equation.
GCF(985,990) = 5
LCM(985,990) = ( 985 × 990) / 5
LCM(985,990) = 975150 / 5
LCM(985,990) = 195030
(i) The LCM of 990 and 985 is associative
LCM of 985 and 990 = LCM of 990 and 985
1. What is the LCM of 985 and 990?
Answer: LCM of 985 and 990 is 195030.
2. What are the Factors of 985?
Answer: Factors of 985 are 1, 5, 197, 985. There are 4 integers that are factors of 985. The greatest factor of 985 is 985.
3. What are the Factors of 990?
Answer: Factors of 990 are 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990. There are 24 integers that are factors of 990. The greatest factor of 990 is 990.
4. How to Find the LCM of 985 and 990?
Answer:
Least Common Multiple of 985 and 990 = 195030
Step 1: Find the prime factorization of 985
985 = 5 x 197
Step 2: Find the prime factorization of 990
990 = 2 x 3 x 3 x 5 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 195030 = 2 x 3 x 3 x 5 x 11 x 197
Step 4: Therefore, the least common multiple of 985 and 990 is 195030.