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What is the Least Common Multiple of 42591 and 42602?

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 42591 and 42602 is 1814461782.

LCM(42591,42602) = 1814461782

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Least Common Multiple of 42591 and 42602 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42591 and 42602, than apply into the LCM equation.

GCF(42591,42602) = 1
LCM(42591,42602) = ( 42591 × 42602) / 1
LCM(42591,42602) = 1814461782 / 1
LCM(42591,42602) = 1814461782

Least Common Multiple (LCM) of 42591 and 42602 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42591 and 42602. First we will calculate the prime factors of 42591 and 42602.

Prime Factorization of 42591

Prime factors of 42591 are 3, 14197. Prime factorization of 42591 in exponential form is:

42591 = 31 × 141971

Prime Factorization of 42602

Prime factors of 42602 are 2, 7, 17, 179. Prime factorization of 42602 in exponential form is:

42602 = 21 × 71 × 171 × 1791

Now multiplying the highest exponent prime factors to calculate the LCM of 42591 and 42602.

LCM(42591,42602) = 31 × 141971 × 21 × 71 × 171 × 1791
LCM(42591,42602) = 1814461782