What is the Least Common Multiple of 3915 and 3923?
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 3915 and 3923 is 15358545.
LCM(3915,3923) = 15358545
Least Common Multiple of 3915 and 3923 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3915 and 3923, than apply into the LCM equation.
GCF(3915,3923) = 1
LCM(3915,3923) = ( 3915 × 3923) / 1
LCM(3915,3923) = 15358545 / 1
LCM(3915,3923) = 15358545
Least Common Multiple (LCM) of 3915 and 3923 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 3915 and 3923. First we will calculate the prime factors of 3915 and 3923.
Prime Factorization of 3915
Prime factors of 3915 are 3, 5, 29. Prime factorization of 3915 in exponential form is:
3915 = 33 × 51 × 291
Prime Factorization of 3923
Prime factors of 3923 are 3923. Prime factorization of 3923 in exponential form is:
3923 = 39231
Now multiplying the highest exponent prime factors to calculate the LCM of 3915 and 3923.
LCM(3915,3923) = 33 × 51 × 291 × 39231
LCM(3915,3923) = 15358545
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