Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 2151 and 2156 the smallest integer that is 4637556 that is divisible by both numbers.
Least Common Multiple (LCM) of 2151 and 2156 is 4637556.
LCM(2151,2156) = 4637556
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 2151 and 2156. First we will calculate the prime factors of 2151 and 2156.
Prime Factorization of 2151
3 | 2151 |
3 | 717 |
239 | 239 |
1 |
Prime factors of 2151 are 3,239. Prime factorization of 2151 in exponential form is:
2151 = 32×2391
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
Now multiplying the highest exponent prime factors to calculate the LCM of 2151 and 2156.
LCM(2151,2156) = 22×32×72×111×2391
LCM(2151,2156) = 4637556
Factors of 2151
List of positive integer factors of 2151 that divides 2151 without a remainder.
1, 3, 9, 239, 717, 2151
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
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2151 and 2156, than apply into the LCM equation.
GCF(2151,2156) = 1
LCM(2151,2156) = ( 2151 × 2156) / 1
LCM(2151,2156) = 4637556 / 1
LCM(2151,2156) = 4637556
(i) The LCM of 2156 and 2151 is associative
LCM of 2151 and 2156 = LCM of 2156 and 2151
1. What is the LCM of 2151 and 2156?
Answer: LCM of 2151 and 2156 is 4637556.
2. What are the Factors of 2151?
Answer: Factors of 2151 are 1, 3, 9, 239, 717, 2151. There are 6 integers that are factors of 2151. The greatest factor of 2151 is 2151.
3. 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.
4. How to Find the LCM of 2151 and 2156?
Answer:
Least Common Multiple of 2151 and 2156 = 4637556
Step 1: Find the prime factorization of 2151
2151 = 3 x 3 x 239
Step 2: Find the prime factorization of 2156
2156 = 2 x 2 x 7 x 7 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 = 4637556 = 2 x 2 x 3 x 3 x 7 x 7 x 11 x 239
Step 4: Therefore, the least common multiple of 2151 and 2156 is 4637556.