What is the Least Common Multiple of 12245 and 12257?
Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.
Least common multiple (LCM) of 12245 and 12257 is 150086965.
LCM(12245,12257) = 150086965
Least Common Multiple of 12245 and 12257 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12245 and 12257, than apply into the LCM equation.
GCF(12245,12257) = 1
LCM(12245,12257) = ( 12245 × 12257) / 1
LCM(12245,12257) = 150086965 / 1
LCM(12245,12257) = 150086965
Least Common Multiple (LCM) of 12245 and 12257 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 12245 and 12257. First we will calculate the prime factors of 12245 and 12257.
Prime Factorization of 12245
Prime factors of 12245 are 5, 31, 79. Prime factorization of 12245 in exponential form is:
12245 = 51 × 311 × 791
Prime Factorization of 12257
Prime factors of 12257 are 7, 17, 103. Prime factorization of 12257 in exponential form is:
12257 = 71 × 171 × 1031
Now multiplying the highest exponent prime factors to calculate the LCM of 12245 and 12257.
LCM(12245,12257) = 51 × 311 × 791 × 71 × 171 × 1031
LCM(12245,12257) = 150086965
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