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What is the Least Common Multiple of 675 and 693?

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 675 and 693 is 51975.

LCM(675,693) = 51975

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Least Common Multiple of 675 and 693 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 675 and 693, than apply into the LCM equation.

GCF(675,693) = 9
LCM(675,693) = ( 675 × 693) / 9
LCM(675,693) = 467775 / 9
LCM(675,693) = 51975

Least Common Multiple (LCM) of 675 and 693 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 675 and 693. First we will calculate the prime factors of 675 and 693.

Prime Factorization of 675

Prime factors of 675 are 3, 5. Prime factorization of 675 in exponential form is:

675 = 33 × 52

Prime Factorization of 693

Prime factors of 693 are 3, 7, 11. Prime factorization of 693 in exponential form is:

693 = 32 × 71 × 111

Now multiplying the highest exponent prime factors to calculate the LCM of 675 and 693.

LCM(675,693) = 33 × 52 × 71 × 111
LCM(675,693) = 51975