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What is the Least Common Multiple of 42496 and 42504?

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 42496 and 42504 is 225781248.

LCM(42496,42504) = 225781248

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Least Common Multiple of 42496 and 42504 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42496 and 42504, than apply into the LCM equation.

GCF(42496,42504) = 8
LCM(42496,42504) = ( 42496 × 42504) / 8
LCM(42496,42504) = 1806249984 / 8
LCM(42496,42504) = 225781248

Least Common Multiple (LCM) of 42496 and 42504 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42496 and 42504. First we will calculate the prime factors of 42496 and 42504.

Prime Factorization of 42496

Prime factors of 42496 are 2, 83. Prime factorization of 42496 in exponential form is:

42496 = 29 × 831

Prime Factorization of 42504

Prime factors of 42504 are 2, 3, 7, 11, 23. Prime factorization of 42504 in exponential form is:

42504 = 23 × 31 × 71 × 111 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 42496 and 42504.

LCM(42496,42504) = 29 × 831 × 31 × 71 × 111 × 231
LCM(42496,42504) = 225781248