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What is the Least Common Multiple of 1568 and 1575?

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 1568 and 1575 is 352800.

LCM(1568,1575) = 352800

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Least Common Multiple of 1568 and 1575 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1568 and 1575, than apply into the LCM equation.

GCF(1568,1575) = 7
LCM(1568,1575) = ( 1568 × 1575) / 7
LCM(1568,1575) = 2469600 / 7
LCM(1568,1575) = 352800

Least Common Multiple (LCM) of 1568 and 1575 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1568 and 1575. First we will calculate the prime factors of 1568 and 1575.

Prime Factorization of 1568

Prime factors of 1568 are 2, 7. Prime factorization of 1568 in exponential form is:

1568 = 25 × 72

Prime Factorization of 1575

Prime factors of 1575 are 3, 5, 7. Prime factorization of 1575 in exponential form is:

1575 = 32 × 52 × 71

Now multiplying the highest exponent prime factors to calculate the LCM of 1568 and 1575.

LCM(1568,1575) = 25 × 72 × 32 × 52
LCM(1568,1575) = 352800