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What is the Least Common Multiple of 40649 and 40660?

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 40649 and 40660 is 1652788340.

LCM(40649,40660) = 1652788340

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Least Common Multiple of 40649 and 40660 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40649 and 40660, than apply into the LCM equation.

GCF(40649,40660) = 1
LCM(40649,40660) = ( 40649 × 40660) / 1
LCM(40649,40660) = 1652788340 / 1
LCM(40649,40660) = 1652788340

Least Common Multiple (LCM) of 40649 and 40660 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40649 and 40660. First we will calculate the prime factors of 40649 and 40660.

Prime Factorization of 40649

Prime factors of 40649 are 7, 5807. Prime factorization of 40649 in exponential form is:

40649 = 71 × 58071

Prime Factorization of 40660

Prime factors of 40660 are 2, 5, 19, 107. Prime factorization of 40660 in exponential form is:

40660 = 22 × 51 × 191 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 40649 and 40660.

LCM(40649,40660) = 71 × 58071 × 22 × 51 × 191 × 1071
LCM(40649,40660) = 1652788340