Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1216 and 1223 the smallest integer that is 1487168 that is divisible by both numbers.
Least Common Multiple (LCM) of 1216 and 1223 is 1487168.
LCM(1216,1223) = 1487168
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 1216 and 1223. First we will calculate the prime factors of 1216 and 1223.
Prime Factorization of 1216
2 | 1216 |
2 | 608 |
2 | 304 |
2 | 152 |
2 | 76 |
2 | 38 |
19 | 19 |
1 |
Prime factors of 1216 are 2,19. Prime factorization of 1216 in exponential form is:
1216 = 26×191
Prime Factorization of 1223
1223 | 1223 |
1 |
Prime factors of 1223 are 1223. Prime factorization of 1223 in exponential form is:
1223 = 12231
Now multiplying the highest exponent prime factors to calculate the LCM of 1216 and 1223.
LCM(1216,1223) = 26×191×12231
LCM(1216,1223) = 1487168
Factors of 1216
List of positive integer factors of 1216 that divides 1216 without a remainder.
1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216
Factors of 1223
List of positive integer factors of 1223 that divides 1223 without a remainder.
1, 1223
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1216 and 1223, than apply into the LCM equation.
GCF(1216,1223) = 1
LCM(1216,1223) = ( 1216 × 1223) / 1
LCM(1216,1223) = 1487168 / 1
LCM(1216,1223) = 1487168
(i) The LCM of 1223 and 1216 is associative
LCM of 1216 and 1223 = LCM of 1223 and 1216
1. What is the LCM of 1216 and 1223?
Answer: LCM of 1216 and 1223 is 1487168.
2. What are the Factors of 1216?
Answer: Factors of 1216 are 1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216. There are 14 integers that are factors of 1216. The greatest factor of 1216 is 1216.
3. What are the Factors of 1223?
Answer: Factors of 1223 are 1, 1223. There are 2 integers that are factors of 1223. The greatest factor of 1223 is 1223.
4. How to Find the LCM of 1216 and 1223?
Answer:
Least Common Multiple of 1216 and 1223 = 1487168
Step 1: Find the prime factorization of 1216
1216 = 2 x 2 x 2 x 2 x 2 x 2 x 19
Step 2: Find the prime factorization of 1223
1223 = 1223
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1487168 = 2 x 2 x 2 x 2 x 2 x 2 x 19 x 1223
Step 4: Therefore, the least common multiple of 1216 and 1223 is 1487168.