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What is the Least Common Multiple of 42448 and 42465?

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 42448 and 42465 is 1802554320.

LCM(42448,42465) = 1802554320

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Least Common Multiple of 42448 and 42465 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42448 and 42465, than apply into the LCM equation.

GCF(42448,42465) = 1
LCM(42448,42465) = ( 42448 × 42465) / 1
LCM(42448,42465) = 1802554320 / 1
LCM(42448,42465) = 1802554320

Least Common Multiple (LCM) of 42448 and 42465 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42448 and 42465. First we will calculate the prime factors of 42448 and 42465.

Prime Factorization of 42448

Prime factors of 42448 are 2, 7, 379. Prime factorization of 42448 in exponential form is:

42448 = 24 × 71 × 3791

Prime Factorization of 42465

Prime factors of 42465 are 3, 5, 19, 149. Prime factorization of 42465 in exponential form is:

42465 = 31 × 51 × 191 × 1491

Now multiplying the highest exponent prime factors to calculate the LCM of 42448 and 42465.

LCM(42448,42465) = 24 × 71 × 3791 × 31 × 51 × 191 × 1491
LCM(42448,42465) = 1802554320