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What is the Least Common Multiple of 71531 and 71546?

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 71531 and 71546 is 5117756926.

LCM(71531,71546) = 5117756926

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Least Common Multiple of 71531 and 71546 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71531 and 71546, than apply into the LCM equation.

GCF(71531,71546) = 1
LCM(71531,71546) = ( 71531 × 71546) / 1
LCM(71531,71546) = 5117756926 / 1
LCM(71531,71546) = 5117756926

Least Common Multiple (LCM) of 71531 and 71546 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71531 and 71546. First we will calculate the prime factors of 71531 and 71546.

Prime Factorization of 71531

Prime factors of 71531 are 233, 307. Prime factorization of 71531 in exponential form is:

71531 = 2331 × 3071

Prime Factorization of 71546

Prime factors of 71546 are 2, 83, 431. Prime factorization of 71546 in exponential form is:

71546 = 21 × 831 × 4311

Now multiplying the highest exponent prime factors to calculate the LCM of 71531 and 71546.

LCM(71531,71546) = 2331 × 3071 × 21 × 831 × 4311
LCM(71531,71546) = 5117756926