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What is the Least Common Multiple of 40645 and 40654?

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 40645 and 40654 is 1652381830.

LCM(40645,40654) = 1652381830

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Least Common Multiple of 40645 and 40654 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40645 and 40654, than apply into the LCM equation.

GCF(40645,40654) = 1
LCM(40645,40654) = ( 40645 × 40654) / 1
LCM(40645,40654) = 1652381830 / 1
LCM(40645,40654) = 1652381830

Least Common Multiple (LCM) of 40645 and 40654 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40645 and 40654. First we will calculate the prime factors of 40645 and 40654.

Prime Factorization of 40645

Prime factors of 40645 are 5, 11, 739. Prime factorization of 40645 in exponential form is:

40645 = 51 × 111 × 7391

Prime Factorization of 40654

Prime factors of 40654 are 2, 20327. Prime factorization of 40654 in exponential form is:

40654 = 21 × 203271

Now multiplying the highest exponent prime factors to calculate the LCM of 40645 and 40654.

LCM(40645,40654) = 51 × 111 × 7391 × 21 × 203271
LCM(40645,40654) = 1652381830