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What is the Least Common Multiple of 15673 and 15690?

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 15673 and 15690 is 245909370.

LCM(15673,15690) = 245909370

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Least Common Multiple of 15673 and 15690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15673 and 15690, than apply into the LCM equation.

GCF(15673,15690) = 1
LCM(15673,15690) = ( 15673 × 15690) / 1
LCM(15673,15690) = 245909370 / 1
LCM(15673,15690) = 245909370

Least Common Multiple (LCM) of 15673 and 15690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15673 and 15690. First we will calculate the prime factors of 15673 and 15690.

Prime Factorization of 15673

Prime factors of 15673 are 7, 2239. Prime factorization of 15673 in exponential form is:

15673 = 71 × 22391

Prime Factorization of 15690

Prime factors of 15690 are 2, 3, 5, 523. Prime factorization of 15690 in exponential form is:

15690 = 21 × 31 × 51 × 5231

Now multiplying the highest exponent prime factors to calculate the LCM of 15673 and 15690.

LCM(15673,15690) = 71 × 22391 × 21 × 31 × 51 × 5231
LCM(15673,15690) = 245909370