Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2156 and 2160 the smallest integer that is 1164240 that is divisible by both numbers.
Least Common Multiple (LCM) of 2156 and 2160 is 1164240.
LCM(2156,2160) = 1164240
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 2156 and 2160. First we will calculate the prime factors of 2156 and 2160.
Prime Factorization of 2156
2 | 2156 |
2 | 1078 |
7 | 539 |
7 | 77 |
11 | 11 |
1 |
Prime factors of 2156 are 2, 7,11. Prime factorization of 2156 in exponential form is:
2156 = 22×72×111
Prime Factorization of 2160
2 | 2160 |
2 | 1080 |
2 | 540 |
2 | 270 |
3 | 135 |
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 2160 are 2, 3,5. Prime factorization of 2160 in exponential form is:
2160 = 24×33×51
Now multiplying the highest exponent prime factors to calculate the LCM of 2156 and 2160.
LCM(2156,2160) = 24×33×51×72×111
LCM(2156,2160) = 1164240
Factors of 2156
List of positive integer factors of 2156 that divides 2156 without a remainder.
1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156
Factors of 2160
List of positive integer factors of 2160 that divides 2160 without a remainder.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2156 and 2160, than apply into the LCM equation.
GCF(2156,2160) = 4
LCM(2156,2160) = ( 2156 × 2160) / 4
LCM(2156,2160) = 4656960 / 4
LCM(2156,2160) = 1164240
(i) The LCM of 2160 and 2156 is associative
LCM of 2156 and 2160 = LCM of 2160 and 2156
1. What is the LCM of 2156 and 2160?
Answer: LCM of 2156 and 2160 is 1164240.
2. What are the Factors of 2156?
Answer: Factors of 2156 are 1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156. There are 18 integers that are factors of 2156. The greatest factor of 2156 is 2156.
3. What are the Factors of 2160?
Answer: Factors of 2160 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160. There are 40 integers that are factors of 2160. The greatest factor of 2160 is 2160.
4. How to Find the LCM of 2156 and 2160?
Answer:
Least Common Multiple of 2156 and 2160 = 1164240
Step 1: Find the prime factorization of 2156
2156 = 2 x 2 x 7 x 7 x 11
Step 2: Find the prime factorization of 2160
2160 = 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1164240 = 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 7 x 7 x 11
Step 4: Therefore, the least common multiple of 2156 and 2160 is 1164240.