Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 248 and 254 the smallest integer that is 31496 that is divisible by both numbers.
Least Common Multiple (LCM) of 248 and 254 is 31496.
LCM(248,254) = 31496
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 248 and 254. First we will calculate the prime factors of 248 and 254.
Prime Factorization of 248
2 | 248 |
2 | 124 |
2 | 62 |
31 | 31 |
1 |
Prime factors of 248 are 2,31. Prime factorization of 248 in exponential form is:
248 = 23×311
Prime Factorization of 254
2 | 254 |
127 | 127 |
1 |
Prime factors of 254 are 2,127. Prime factorization of 254 in exponential form is:
254 = 21×1271
Now multiplying the highest exponent prime factors to calculate the LCM of 248 and 254.
LCM(248,254) = 23×311×1271
LCM(248,254) = 31496
Factors of 248
List of positive integer factors of 248 that divides 248 without a remainder.
1, 2, 4, 8, 31, 62, 124, 248
Factors of 254
List of positive integer factors of 254 that divides 254 without a remainder.
1, 2, 127, 254
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 248 and 254, than apply into the LCM equation.
GCF(248,254) = 2
LCM(248,254) = ( 248 × 254) / 2
LCM(248,254) = 62992 / 2
LCM(248,254) = 31496
(i) The LCM of 254 and 248 is associative
LCM of 248 and 254 = LCM of 254 and 248
1. What is the LCM of 248 and 254?
Answer: LCM of 248 and 254 is 31496.
2. What are the Factors of 248?
Answer: Factors of 248 are 1, 2, 4, 8, 31, 62, 124, 248. There are 8 integers that are factors of 248. The greatest factor of 248 is 248.
3. What are the Factors of 254?
Answer: Factors of 254 are 1, 2, 127, 254. There are 4 integers that are factors of 254. The greatest factor of 254 is 254.
4. How to Find the LCM of 248 and 254?
Answer:
Least Common Multiple of 248 and 254 = 31496
Step 1: Find the prime factorization of 248
248 = 2 x 2 x 2 x 31
Step 2: Find the prime factorization of 254
254 = 2 x 127
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 31496 = 2 x 2 x 2 x 31 x 127
Step 4: Therefore, the least common multiple of 248 and 254 is 31496.