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What is the Least Common Multiple of 75705 and 75724?

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 75705 and 75724 is 5732685420.

LCM(75705,75724) = 5732685420

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Least Common Multiple of 75705 and 75724 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75705 and 75724, than apply into the LCM equation.

GCF(75705,75724) = 1
LCM(75705,75724) = ( 75705 × 75724) / 1
LCM(75705,75724) = 5732685420 / 1
LCM(75705,75724) = 5732685420

Least Common Multiple (LCM) of 75705 and 75724 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75705 and 75724. First we will calculate the prime factors of 75705 and 75724.

Prime Factorization of 75705

Prime factors of 75705 are 3, 5, 7, 103. Prime factorization of 75705 in exponential form is:

75705 = 31 × 51 × 72 × 1031

Prime Factorization of 75724

Prime factors of 75724 are 2, 11, 1721. Prime factorization of 75724 in exponential form is:

75724 = 22 × 111 × 17211

Now multiplying the highest exponent prime factors to calculate the LCM of 75705 and 75724.

LCM(75705,75724) = 31 × 51 × 72 × 1031 × 22 × 111 × 17211
LCM(75705,75724) = 5732685420