Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4005 and 4008 the smallest integer that is 5350680 that is divisible by both numbers.
Least Common Multiple (LCM) of 4005 and 4008 is 5350680.
LCM(4005,4008) = 5350680
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 4005 and 4008. First we will calculate the prime factors of 4005 and 4008.
Prime Factorization of 4005
3 | 4005 |
3 | 1335 |
5 | 445 |
89 | 89 |
1 |
Prime factors of 4005 are 3, 5,89. Prime factorization of 4005 in exponential form is:
4005 = 32×51×891
Prime Factorization of 4008
2 | 4008 |
2 | 2004 |
2 | 1002 |
3 | 501 |
167 | 167 |
1 |
Prime factors of 4008 are 2, 3,167. Prime factorization of 4008 in exponential form is:
4008 = 23×31×1671
Now multiplying the highest exponent prime factors to calculate the LCM of 4005 and 4008.
LCM(4005,4008) = 23×32×51×891×1671
LCM(4005,4008) = 5350680
Factors of 4005
List of positive integer factors of 4005 that divides 4005 without a remainder.
1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005
Factors of 4008
List of positive integer factors of 4008 that divides 4008 without a remainder.
1, 2, 3, 4, 6, 8, 12, 24, 167, 334, 501, 668, 1002, 1336, 2004, 4008
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4005 and 4008, than apply into the LCM equation.
GCF(4005,4008) = 3
LCM(4005,4008) = ( 4005 × 4008) / 3
LCM(4005,4008) = 16052040 / 3
LCM(4005,4008) = 5350680
(i) The LCM of 4008 and 4005 is associative
LCM of 4005 and 4008 = LCM of 4008 and 4005
1. What is the LCM of 4005 and 4008?
Answer: LCM of 4005 and 4008 is 5350680.
2. What are the Factors of 4005?
Answer: Factors of 4005 are 1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005. There are 12 integers that are factors of 4005. The greatest factor of 4005 is 4005.
3. What are the Factors of 4008?
Answer: Factors of 4008 are 1, 2, 3, 4, 6, 8, 12, 24, 167, 334, 501, 668, 1002, 1336, 2004, 4008. There are 16 integers that are factors of 4008. The greatest factor of 4008 is 4008.
4. How to Find the LCM of 4005 and 4008?
Answer:
Least Common Multiple of 4005 and 4008 = 5350680
Step 1: Find the prime factorization of 4005
4005 = 3 x 3 x 5 x 89
Step 2: Find the prime factorization of 4008
4008 = 2 x 2 x 2 x 3 x 167
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 5350680 = 2 x 2 x 2 x 3 x 3 x 5 x 89 x 167
Step 4: Therefore, the least common multiple of 4005 and 4008 is 5350680.