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What is the Least Common Multiple of 65578 and 65590?

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 65578 and 65590 is 2150630510.

LCM(65578,65590) = 2150630510

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Least Common Multiple of 65578 and 65590 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65578 and 65590, than apply into the LCM equation.

GCF(65578,65590) = 2
LCM(65578,65590) = ( 65578 × 65590) / 2
LCM(65578,65590) = 4301261020 / 2
LCM(65578,65590) = 2150630510

Least Common Multiple (LCM) of 65578 and 65590 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65578 and 65590. First we will calculate the prime factors of 65578 and 65590.

Prime Factorization of 65578

Prime factors of 65578 are 2, 32789. Prime factorization of 65578 in exponential form is:

65578 = 21 × 327891

Prime Factorization of 65590

Prime factors of 65590 are 2, 5, 7, 937. Prime factorization of 65590 in exponential form is:

65590 = 21 × 51 × 71 × 9371

Now multiplying the highest exponent prime factors to calculate the LCM of 65578 and 65590.

LCM(65578,65590) = 21 × 327891 × 51 × 71 × 9371
LCM(65578,65590) = 2150630510