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What is the Least Common Multiple of 15902 and 15915?

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 15902 and 15915 is 253080330.

LCM(15902,15915) = 253080330

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Least Common Multiple of 15902 and 15915 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15902 and 15915, than apply into the LCM equation.

GCF(15902,15915) = 1
LCM(15902,15915) = ( 15902 × 15915) / 1
LCM(15902,15915) = 253080330 / 1
LCM(15902,15915) = 253080330

Least Common Multiple (LCM) of 15902 and 15915 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15902 and 15915. First we will calculate the prime factors of 15902 and 15915.

Prime Factorization of 15902

Prime factors of 15902 are 2, 7951. Prime factorization of 15902 in exponential form is:

15902 = 21 × 79511

Prime Factorization of 15915

Prime factors of 15915 are 3, 5, 1061. Prime factorization of 15915 in exponential form is:

15915 = 31 × 51 × 10611

Now multiplying the highest exponent prime factors to calculate the LCM of 15902 and 15915.

LCM(15902,15915) = 21 × 79511 × 31 × 51 × 10611
LCM(15902,15915) = 253080330