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What is the Least Common Multiple of 72542 and 72546?

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 72542 and 72546 is 2631315966.

LCM(72542,72546) = 2631315966

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Least Common Multiple of 72542 and 72546 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72542 and 72546, than apply into the LCM equation.

GCF(72542,72546) = 2
LCM(72542,72546) = ( 72542 × 72546) / 2
LCM(72542,72546) = 5262631932 / 2
LCM(72542,72546) = 2631315966

Least Common Multiple (LCM) of 72542 and 72546 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72542 and 72546. First we will calculate the prime factors of 72542 and 72546.

Prime Factorization of 72542

Prime factors of 72542 are 2, 19, 23, 83. Prime factorization of 72542 in exponential form is:

72542 = 21 × 191 × 231 × 831

Prime Factorization of 72546

Prime factors of 72546 are 2, 3, 107, 113. Prime factorization of 72546 in exponential form is:

72546 = 21 × 31 × 1071 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 72542 and 72546.

LCM(72542,72546) = 21 × 191 × 231 × 831 × 31 × 1071 × 1131
LCM(72542,72546) = 2631315966