Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3280 and 3285 the smallest integer that is 2154960 that is divisible by both numbers.
Least Common Multiple (LCM) of 3280 and 3285 is 2154960.
LCM(3280,3285) = 2154960
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 3280 and 3285. First we will calculate the prime factors of 3280 and 3285.
Prime Factorization of 3280
2 | 3280 |
2 | 1640 |
2 | 820 |
2 | 410 |
5 | 205 |
41 | 41 |
1 |
Prime factors of 3280 are 2, 5,41. Prime factorization of 3280 in exponential form is:
3280 = 24×51×411
Prime Factorization of 3285
3 | 3285 |
3 | 1095 |
5 | 365 |
73 | 73 |
1 |
Prime factors of 3285 are 3, 5,73. Prime factorization of 3285 in exponential form is:
3285 = 32×51×731
Now multiplying the highest exponent prime factors to calculate the LCM of 3280 and 3285.
LCM(3280,3285) = 24×32×51×411×731
LCM(3280,3285) = 2154960
Factors of 3280
List of positive integer factors of 3280 that divides 3280 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280
Factors of 3285
List of positive integer factors of 3285 that divides 3285 without a remainder.
1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3280 and 3285, than apply into the LCM equation.
GCF(3280,3285) = 5
LCM(3280,3285) = ( 3280 × 3285) / 5
LCM(3280,3285) = 10774800 / 5
LCM(3280,3285) = 2154960
(i) The LCM of 3285 and 3280 is associative
LCM of 3280 and 3285 = LCM of 3285 and 3280
1. What is the LCM of 3280 and 3285?
Answer: LCM of 3280 and 3285 is 2154960.
2. What are the Factors of 3280?
Answer: Factors of 3280 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280. There are 20 integers that are factors of 3280. The greatest factor of 3280 is 3280.
3. What are the Factors of 3285?
Answer: Factors of 3285 are 1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285. There are 12 integers that are factors of 3285. The greatest factor of 3285 is 3285.
4. How to Find the LCM of 3280 and 3285?
Answer:
Least Common Multiple of 3280 and 3285 = 2154960
Step 1: Find the prime factorization of 3280
3280 = 2 x 2 x 2 x 2 x 5 x 41
Step 2: Find the prime factorization of 3285
3285 = 3 x 3 x 5 x 73
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2154960 = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 41 x 73
Step 4: Therefore, the least common multiple of 3280 and 3285 is 2154960.