Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 31434 and 31440 the smallest integer that is 164714160 that is divisible by both numbers.
Least Common Multiple (LCM) of 31434 and 31440 is 164714160.
LCM(31434,31440) = 164714160
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 31434 and 31440. First we will calculate the prime factors of 31434 and 31440.
Prime Factorization of 31434
2 | 31434 |
3 | 15717 |
13 | 5239 |
13 | 403 |
31 | 31 |
1 |
Prime factors of 31434 are 2, 3, 13,31. Prime factorization of 31434 in exponential form is:
31434 = 21×31×132×311
Prime Factorization of 31440
2 | 31440 |
2 | 15720 |
2 | 7860 |
2 | 3930 |
3 | 1965 |
5 | 655 |
131 | 131 |
1 |
Prime factors of 31440 are 2, 3, 5,131. Prime factorization of 31440 in exponential form is:
31440 = 24×31×51×1311
Now multiplying the highest exponent prime factors to calculate the LCM of 31434 and 31440.
LCM(31434,31440) = 24×31×51×132×311×1311
LCM(31434,31440) = 164714160
Factors of 31434
List of positive integer factors of 31434 that divides 31434 without a remainder.
1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 169, 186, 338, 403, 507, 806, 1014, 1209, 2418, 5239, 10478, 15717, 31434
Factors of 31440
List of positive integer factors of 31440 that divides 31440 without a remainder.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2620, 3144, 3930, 5240, 6288, 7860, 10480, 15720, 31440
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31434 and 31440, than apply into the LCM equation.
GCF(31434,31440) = 6
LCM(31434,31440) = ( 31434 × 31440) / 6
LCM(31434,31440) = 988284960 / 6
LCM(31434,31440) = 164714160
(i) The LCM of 31440 and 31434 is associative
LCM of 31434 and 31440 = LCM of 31440 and 31434
1. What is the LCM of 31434 and 31440?
Answer: LCM of 31434 and 31440 is 164714160.
2. What are the Factors of 31434?
Answer: Factors of 31434 are 1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 169, 186, 338, 403, 507, 806, 1014, 1209, 2418, 5239, 10478, 15717, 31434. There are 24 integers that are factors of 31434. The greatest factor of 31434 is 31434.
3. What are the Factors of 31440?
Answer: Factors of 31440 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2620, 3144, 3930, 5240, 6288, 7860, 10480, 15720, 31440. There are 40 integers that are factors of 31440. The greatest factor of 31440 is 31440.
4. How to Find the LCM of 31434 and 31440?
Answer:
Least Common Multiple of 31434 and 31440 = 164714160
Step 1: Find the prime factorization of 31434
31434 = 2 x 3 x 13 x 13 x 31
Step 2: Find the prime factorization of 31440
31440 = 2 x 2 x 2 x 2 x 3 x 5 x 131
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 164714160 = 2 x 2 x 2 x 2 x 3 x 5 x 13 x 13 x 31 x 131
Step 4: Therefore, the least common multiple of 31434 and 31440 is 164714160.