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What is the Least Common Multiple of 15787 and 15802?

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 15787 and 15802 is 249466174.

LCM(15787,15802) = 249466174

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Least Common Multiple of 15787 and 15802 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15787 and 15802, than apply into the LCM equation.

GCF(15787,15802) = 1
LCM(15787,15802) = ( 15787 × 15802) / 1
LCM(15787,15802) = 249466174 / 1
LCM(15787,15802) = 249466174

Least Common Multiple (LCM) of 15787 and 15802 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15787 and 15802. First we will calculate the prime factors of 15787 and 15802.

Prime Factorization of 15787

Prime factors of 15787 are 15787. Prime factorization of 15787 in exponential form is:

15787 = 157871

Prime Factorization of 15802

Prime factors of 15802 are 2, 7901. Prime factorization of 15802 in exponential form is:

15802 = 21 × 79011

Now multiplying the highest exponent prime factors to calculate the LCM of 15787 and 15802.

LCM(15787,15802) = 157871 × 21 × 79011
LCM(15787,15802) = 249466174