Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 451 and 456 the smallest integer that is 205656 that is divisible by both numbers.
Least Common Multiple (LCM) of 451 and 456 is 205656.
LCM(451,456) = 205656
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 451 and 456. First we will calculate the prime factors of 451 and 456.
Prime Factorization of 451
11 | 451 |
41 | 41 |
1 |
Prime factors of 451 are 11,41. Prime factorization of 451 in exponential form is:
451 = 111×411
Prime Factorization of 456
2 | 456 |
2 | 228 |
2 | 114 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 456 are 2, 3,19. Prime factorization of 456 in exponential form is:
456 = 23×31×191
Now multiplying the highest exponent prime factors to calculate the LCM of 451 and 456.
LCM(451,456) = 23×31×111×191×411
LCM(451,456) = 205656
Factors of 451
List of positive integer factors of 451 that divides 451 without a remainder.
1, 11, 41, 451
Factors of 456
List of positive integer factors of 456 that divides 456 without a remainder.
1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 451 and 456, than apply into the LCM equation.
GCF(451,456) = 1
LCM(451,456) = ( 451 × 456) / 1
LCM(451,456) = 205656 / 1
LCM(451,456) = 205656
(i) The LCM of 456 and 451 is associative
LCM of 451 and 456 = LCM of 456 and 451
1. What is the LCM of 451 and 456?
Answer: LCM of 451 and 456 is 205656.
2. What are the Factors of 451?
Answer: Factors of 451 are 1, 11, 41, 451. There are 4 integers that are factors of 451. The greatest factor of 451 is 451.
3. What are the Factors of 456?
Answer: Factors of 456 are 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456. There are 16 integers that are factors of 456. The greatest factor of 456 is 456.
4. How to Find the LCM of 451 and 456?
Answer:
Least Common Multiple of 451 and 456 = 205656
Step 1: Find the prime factorization of 451
451 = 11 x 41
Step 2: Find the prime factorization of 456
456 = 2 x 2 x 2 x 3 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 205656 = 2 x 2 x 2 x 3 x 11 x 19 x 41
Step 4: Therefore, the least common multiple of 451 and 456 is 205656.