Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2105 and 2107 the smallest integer that is 4435235 that is divisible by both numbers.
Least Common Multiple (LCM) of 2105 and 2107 is 4435235.
LCM(2105,2107) = 4435235
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 2105 and 2107. First we will calculate the prime factors of 2105 and 2107.
Prime Factorization of 2105
5 | 2105 |
421 | 421 |
1 |
Prime factors of 2105 are 5,421. Prime factorization of 2105 in exponential form is:
2105 = 51×4211
Prime Factorization of 2107
7 | 2107 |
7 | 301 |
43 | 43 |
1 |
Prime factors of 2107 are 7,43. Prime factorization of 2107 in exponential form is:
2107 = 72×431
Now multiplying the highest exponent prime factors to calculate the LCM of 2105 and 2107.
LCM(2105,2107) = 51×72×431×4211
LCM(2105,2107) = 4435235
Factors of 2105
List of positive integer factors of 2105 that divides 2105 without a remainder.
1, 5, 421, 2105
Factors of 2107
List of positive integer factors of 2107 that divides 2107 without a remainder.
1, 7, 43, 49, 301, 2107
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2105 and 2107, than apply into the LCM equation.
GCF(2105,2107) = 1
LCM(2105,2107) = ( 2105 × 2107) / 1
LCM(2105,2107) = 4435235 / 1
LCM(2105,2107) = 4435235
(i) The LCM of 2107 and 2105 is associative
LCM of 2105 and 2107 = LCM of 2107 and 2105
1. What is the LCM of 2105 and 2107?
Answer: LCM of 2105 and 2107 is 4435235.
2. What are the Factors of 2105?
Answer: Factors of 2105 are 1, 5, 421, 2105. There are 4 integers that are factors of 2105. The greatest factor of 2105 is 2105.
3. What are the Factors of 2107?
Answer: Factors of 2107 are 1, 7, 43, 49, 301, 2107. There are 6 integers that are factors of 2107. The greatest factor of 2107 is 2107.
4. How to Find the LCM of 2105 and 2107?
Answer:
Least Common Multiple of 2105 and 2107 = 4435235
Step 1: Find the prime factorization of 2105
2105 = 5 x 421
Step 2: Find the prime factorization of 2107
2107 = 7 x 7 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4435235 = 5 x 7 x 7 x 43 x 421
Step 4: Therefore, the least common multiple of 2105 and 2107 is 4435235.