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What is the Least Common Multiple of 40280 and 40297?

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 40280 and 40297 is 1623163160.

LCM(40280,40297) = 1623163160

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Least Common Multiple of 40280 and 40297 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40280 and 40297, than apply into the LCM equation.

GCF(40280,40297) = 1
LCM(40280,40297) = ( 40280 × 40297) / 1
LCM(40280,40297) = 1623163160 / 1
LCM(40280,40297) = 1623163160

Least Common Multiple (LCM) of 40280 and 40297 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40280 and 40297. First we will calculate the prime factors of 40280 and 40297.

Prime Factorization of 40280

Prime factors of 40280 are 2, 5, 19, 53. Prime factorization of 40280 in exponential form is:

40280 = 23 × 51 × 191 × 531

Prime Factorization of 40297

Prime factors of 40297 are 59, 683. Prime factorization of 40297 in exponential form is:

40297 = 591 × 6831

Now multiplying the highest exponent prime factors to calculate the LCM of 40280 and 40297.

LCM(40280,40297) = 23 × 51 × 191 × 531 × 591 × 6831
LCM(40280,40297) = 1623163160