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What is the Least Common Multiple of 45835 and 45840?

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 45835 and 45840 is 420215280.

LCM(45835,45840) = 420215280

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Least Common Multiple of 45835 and 45840 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 45835 and 45840, than apply into the LCM equation.

GCF(45835,45840) = 5
LCM(45835,45840) = ( 45835 × 45840) / 5
LCM(45835,45840) = 2101076400 / 5
LCM(45835,45840) = 420215280

Least Common Multiple (LCM) of 45835 and 45840 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 45835 and 45840. First we will calculate the prime factors of 45835 and 45840.

Prime Factorization of 45835

Prime factors of 45835 are 5, 89, 103. Prime factorization of 45835 in exponential form is:

45835 = 51 × 891 × 1031

Prime Factorization of 45840

Prime factors of 45840 are 2, 3, 5, 191. Prime factorization of 45840 in exponential form is:

45840 = 24 × 31 × 51 × 1911

Now multiplying the highest exponent prime factors to calculate the LCM of 45835 and 45840.

LCM(45835,45840) = 51 × 891 × 1031 × 24 × 31 × 1911
LCM(45835,45840) = 420215280