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What is the Least Common Multiple of 9021 and 9040?

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 9021 and 9040 is 81549840.

LCM(9021,9040) = 81549840

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Least Common Multiple of 9021 and 9040 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9021 and 9040, than apply into the LCM equation.

GCF(9021,9040) = 1
LCM(9021,9040) = ( 9021 × 9040) / 1
LCM(9021,9040) = 81549840 / 1
LCM(9021,9040) = 81549840

Least Common Multiple (LCM) of 9021 and 9040 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 9021 and 9040. First we will calculate the prime factors of 9021 and 9040.

Prime Factorization of 9021

Prime factors of 9021 are 3, 31, 97. Prime factorization of 9021 in exponential form is:

9021 = 31 × 311 × 971

Prime Factorization of 9040

Prime factors of 9040 are 2, 5, 113. Prime factorization of 9040 in exponential form is:

9040 = 24 × 51 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 9021 and 9040.

LCM(9021,9040) = 31 × 311 × 971 × 24 × 51 × 1131
LCM(9021,9040) = 81549840