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What is the Least Common Multiple of 30690 and 30704?

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 30690 and 30704 is 471152880.

LCM(30690,30704) = 471152880

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Least Common Multiple of 30690 and 30704 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30690 and 30704, than apply into the LCM equation.

GCF(30690,30704) = 2
LCM(30690,30704) = ( 30690 × 30704) / 2
LCM(30690,30704) = 942305760 / 2
LCM(30690,30704) = 471152880

Least Common Multiple (LCM) of 30690 and 30704 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30690 and 30704. First we will calculate the prime factors of 30690 and 30704.

Prime Factorization of 30690

Prime factors of 30690 are 2, 3, 5, 11, 31. Prime factorization of 30690 in exponential form is:

30690 = 21 × 32 × 51 × 111 × 311

Prime Factorization of 30704

Prime factors of 30704 are 2, 19, 101. Prime factorization of 30704 in exponential form is:

30704 = 24 × 191 × 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 30690 and 30704.

LCM(30690,30704) = 24 × 32 × 51 × 111 × 311 × 191 × 1011
LCM(30690,30704) = 471152880