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What is the Least Common Multiple of 75724 and 75738?

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 75724 and 75738 is 2867592156.

LCM(75724,75738) = 2867592156

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Least Common Multiple of 75724 and 75738 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75724 and 75738, than apply into the LCM equation.

GCF(75724,75738) = 2
LCM(75724,75738) = ( 75724 × 75738) / 2
LCM(75724,75738) = 5735184312 / 2
LCM(75724,75738) = 2867592156

Least Common Multiple (LCM) of 75724 and 75738 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75724 and 75738. First we will calculate the prime factors of 75724 and 75738.

Prime Factorization of 75724

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

75724 = 22 × 111 × 17211

Prime Factorization of 75738

Prime factors of 75738 are 2, 3, 13, 971. Prime factorization of 75738 in exponential form is:

75738 = 21 × 31 × 131 × 9711

Now multiplying the highest exponent prime factors to calculate the LCM of 75724 and 75738.

LCM(75724,75738) = 22 × 111 × 17211 × 31 × 131 × 9711
LCM(75724,75738) = 2867592156