Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1716 and 1721 the smallest integer that is 2953236 that is divisible by both numbers.
Least Common Multiple (LCM) of 1716 and 1721 is 2953236.
LCM(1716,1721) = 2953236
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 1716 and 1721. First we will calculate the prime factors of 1716 and 1721.
Prime Factorization of 1716
2 | 1716 |
2 | 858 |
3 | 429 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 1716 are 2, 3, 11,13. Prime factorization of 1716 in exponential form is:
1716 = 22×31×111×131
Prime Factorization of 1721
1721 | 1721 |
1 |
Prime factors of 1721 are 1721. Prime factorization of 1721 in exponential form is:
1721 = 17211
Now multiplying the highest exponent prime factors to calculate the LCM of 1716 and 1721.
LCM(1716,1721) = 22×31×111×131×17211
LCM(1716,1721) = 2953236
Factors of 1716
List of positive integer factors of 1716 that divides 1716 without a remainder.
1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716
Factors of 1721
List of positive integer factors of 1721 that divides 1721 without a remainder.
1, 1721
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1716 and 1721, than apply into the LCM equation.
GCF(1716,1721) = 1
LCM(1716,1721) = ( 1716 × 1721) / 1
LCM(1716,1721) = 2953236 / 1
LCM(1716,1721) = 2953236
(i) The LCM of 1721 and 1716 is associative
LCM of 1716 and 1721 = LCM of 1721 and 1716
1. What is the LCM of 1716 and 1721?
Answer: LCM of 1716 and 1721 is 2953236.
2. What are the Factors of 1716?
Answer: Factors of 1716 are 1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 286, 429, 572, 858, 1716. There are 24 integers that are factors of 1716. The greatest factor of 1716 is 1716.
3. What are the Factors of 1721?
Answer: Factors of 1721 are 1, 1721. There are 2 integers that are factors of 1721. The greatest factor of 1721 is 1721.
4. How to Find the LCM of 1716 and 1721?
Answer:
Least Common Multiple of 1716 and 1721 = 2953236
Step 1: Find the prime factorization of 1716
1716 = 2 x 2 x 3 x 11 x 13
Step 2: Find the prime factorization of 1721
1721 = 1721
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2953236 = 2 x 2 x 3 x 11 x 13 x 1721
Step 4: Therefore, the least common multiple of 1716 and 1721 is 2953236.