What is the Least Common Multiple of 8445 and 8457?
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 8445 and 8457 is 23806455.
LCM(8445,8457) = 23806455
Least Common Multiple of 8445 and 8457 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8445 and 8457, than apply into the LCM equation.
GCF(8445,8457) = 3
LCM(8445,8457) = ( 8445 × 8457) / 3
LCM(8445,8457) = 71419365 / 3
LCM(8445,8457) = 23806455
Least Common Multiple (LCM) of 8445 and 8457 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 8445 and 8457. First we will calculate the prime factors of 8445 and 8457.
Prime Factorization of 8445
Prime factors of 8445 are 3, 5, 563. Prime factorization of 8445 in exponential form is:
8445 = 31 × 51 × 5631
Prime Factorization of 8457
Prime factors of 8457 are 3, 2819. Prime factorization of 8457 in exponential form is:
8457 = 31 × 28191
Now multiplying the highest exponent prime factors to calculate the LCM of 8445 and 8457.
LCM(8445,8457) = 31 × 51 × 5631 × 28191
LCM(8445,8457) = 23806455
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