Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1712 and 1720 the smallest integer that is 368080 that is divisible by both numbers.
Least Common Multiple (LCM) of 1712 and 1720 is 368080.
LCM(1712,1720) = 368080
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 1712 and 1720. First we will calculate the prime factors of 1712 and 1720.
Prime Factorization of 1712
2 | 1712 |
2 | 856 |
2 | 428 |
2 | 214 |
107 | 107 |
1 |
Prime factors of 1712 are 2,107. Prime factorization of 1712 in exponential form is:
1712 = 24×1071
Prime Factorization of 1720
2 | 1720 |
2 | 860 |
2 | 430 |
5 | 215 |
43 | 43 |
1 |
Prime factors of 1720 are 2, 5,43. Prime factorization of 1720 in exponential form is:
1720 = 23×51×431
Now multiplying the highest exponent prime factors to calculate the LCM of 1712 and 1720.
LCM(1712,1720) = 24×51×431×1071
LCM(1712,1720) = 368080
Factors of 1712
List of positive integer factors of 1712 that divides 1712 without a remainder.
1, 2, 4, 8, 16, 107, 214, 428, 856, 1712
Factors of 1720
List of positive integer factors of 1720 that divides 1720 without a remainder.
1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1712 and 1720, than apply into the LCM equation.
GCF(1712,1720) = 8
LCM(1712,1720) = ( 1712 × 1720) / 8
LCM(1712,1720) = 2944640 / 8
LCM(1712,1720) = 368080
(i) The LCM of 1720 and 1712 is associative
LCM of 1712 and 1720 = LCM of 1720 and 1712
1. What is the LCM of 1712 and 1720?
Answer: LCM of 1712 and 1720 is 368080.
2. What are the Factors of 1712?
Answer: Factors of 1712 are 1, 2, 4, 8, 16, 107, 214, 428, 856, 1712. There are 10 integers that are factors of 1712. The greatest factor of 1712 is 1712.
3. What are the Factors of 1720?
Answer: Factors of 1720 are 1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720. There are 16 integers that are factors of 1720. The greatest factor of 1720 is 1720.
4. How to Find the LCM of 1712 and 1720?
Answer:
Least Common Multiple of 1712 and 1720 = 368080
Step 1: Find the prime factorization of 1712
1712 = 2 x 2 x 2 x 2 x 107
Step 2: Find the prime factorization of 1720
1720 = 2 x 2 x 2 x 5 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 = 368080 = 2 x 2 x 2 x 2 x 5 x 43 x 107
Step 4: Therefore, the least common multiple of 1712 and 1720 is 368080.