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What is the Least Common Multiple of 45976 and 45990?

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 45976 and 45990 is 151031160.

LCM(45976,45990) = 151031160

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Least Common Multiple of 45976 and 45990 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 45976 and 45990, than apply into the LCM equation.

GCF(45976,45990) = 14
LCM(45976,45990) = ( 45976 × 45990) / 14
LCM(45976,45990) = 2114436240 / 14
LCM(45976,45990) = 151031160

Least Common Multiple (LCM) of 45976 and 45990 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 45976 and 45990. First we will calculate the prime factors of 45976 and 45990.

Prime Factorization of 45976

Prime factors of 45976 are 2, 7, 821. Prime factorization of 45976 in exponential form is:

45976 = 23 × 71 × 8211

Prime Factorization of 45990

Prime factors of 45990 are 2, 3, 5, 7, 73. Prime factorization of 45990 in exponential form is:

45990 = 21 × 32 × 51 × 71 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 45976 and 45990.

LCM(45976,45990) = 23 × 71 × 8211 × 32 × 51 × 731
LCM(45976,45990) = 151031160