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What is the Least Common Multiple of 66576 and 66580?

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 66576 and 66580 is 1108157520.

LCM(66576,66580) = 1108157520

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Least Common Multiple of 66576 and 66580 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66576 and 66580, than apply into the LCM equation.

GCF(66576,66580) = 4
LCM(66576,66580) = ( 66576 × 66580) / 4
LCM(66576,66580) = 4432630080 / 4
LCM(66576,66580) = 1108157520

Least Common Multiple (LCM) of 66576 and 66580 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66576 and 66580. First we will calculate the prime factors of 66576 and 66580.

Prime Factorization of 66576

Prime factors of 66576 are 2, 3, 19, 73. Prime factorization of 66576 in exponential form is:

66576 = 24 × 31 × 191 × 731

Prime Factorization of 66580

Prime factors of 66580 are 2, 5, 3329. Prime factorization of 66580 in exponential form is:

66580 = 22 × 51 × 33291

Now multiplying the highest exponent prime factors to calculate the LCM of 66576 and 66580.

LCM(66576,66580) = 24 × 31 × 191 × 731 × 51 × 33291
LCM(66576,66580) = 1108157520