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What is the Least Common Multiple of 70545 and 70558?

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 70545 and 70558 is 4977514110.

LCM(70545,70558) = 4977514110

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Least Common Multiple of 70545 and 70558 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70545 and 70558, than apply into the LCM equation.

GCF(70545,70558) = 1
LCM(70545,70558) = ( 70545 × 70558) / 1
LCM(70545,70558) = 4977514110 / 1
LCM(70545,70558) = 4977514110

Least Common Multiple (LCM) of 70545 and 70558 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70545 and 70558. First we will calculate the prime factors of 70545 and 70558.

Prime Factorization of 70545

Prime factors of 70545 are 3, 5, 4703. Prime factorization of 70545 in exponential form is:

70545 = 31 × 51 × 47031

Prime Factorization of 70558

Prime factors of 70558 are 2, 35279. Prime factorization of 70558 in exponential form is:

70558 = 21 × 352791

Now multiplying the highest exponent prime factors to calculate the LCM of 70545 and 70558.

LCM(70545,70558) = 31 × 51 × 47031 × 21 × 352791
LCM(70545,70558) = 4977514110