Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 31456 and 31460 the smallest integer that is 247401440 that is divisible by both numbers.
Least Common Multiple (LCM) of 31456 and 31460 is 247401440.
LCM(31456,31460) = 247401440
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 31456 and 31460. First we will calculate the prime factors of 31456 and 31460.
Prime Factorization of 31456
2 | 31456 |
2 | 15728 |
2 | 7864 |
2 | 3932 |
2 | 1966 |
983 | 983 |
1 |
Prime factors of 31456 are 2,983. Prime factorization of 31456 in exponential form is:
31456 = 25×9831
Prime Factorization of 31460
2 | 31460 |
2 | 15730 |
5 | 7865 |
11 | 1573 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 31460 are 2, 5, 11,13. Prime factorization of 31460 in exponential form is:
31460 = 22×51×112×131
Now multiplying the highest exponent prime factors to calculate the LCM of 31456 and 31460.
LCM(31456,31460) = 25×51×112×131×9831
LCM(31456,31460) = 247401440
Factors of 31456
List of positive integer factors of 31456 that divides 31456 without a remainder.
1, 2, 4, 8, 16, 32, 983, 1966, 3932, 7864, 15728, 31456
Factors of 31460
List of positive integer factors of 31460 that divides 31460 without a remainder.
1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 1210, 1430, 1573, 2420, 2860, 3146, 6292, 7865, 15730, 31460
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31456 and 31460, than apply into the LCM equation.
GCF(31456,31460) = 4
LCM(31456,31460) = ( 31456 × 31460) / 4
LCM(31456,31460) = 989605760 / 4
LCM(31456,31460) = 247401440
(i) The LCM of 31460 and 31456 is associative
LCM of 31456 and 31460 = LCM of 31460 and 31456
1. What is the LCM of 31456 and 31460?
Answer: LCM of 31456 and 31460 is 247401440.
2. What are the Factors of 31456?
Answer: Factors of 31456 are 1, 2, 4, 8, 16, 32, 983, 1966, 3932, 7864, 15728, 31456. There are 12 integers that are factors of 31456. The greatest factor of 31456 is 31456.
3. What are the Factors of 31460?
Answer: Factors of 31460 are 1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 1210, 1430, 1573, 2420, 2860, 3146, 6292, 7865, 15730, 31460. There are 36 integers that are factors of 31460. The greatest factor of 31460 is 31460.
4. How to Find the LCM of 31456 and 31460?
Answer:
Least Common Multiple of 31456 and 31460 = 247401440
Step 1: Find the prime factorization of 31456
31456 = 2 x 2 x 2 x 2 x 2 x 983
Step 2: Find the prime factorization of 31460
31460 = 2 x 2 x 5 x 11 x 11 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 247401440 = 2 x 2 x 2 x 2 x 2 x 5 x 11 x 11 x 13 x 983
Step 4: Therefore, the least common multiple of 31456 and 31460 is 247401440.