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What is the Least Common Multiple of 15913 and 15920?

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 15913 and 15920 is 253334960.

LCM(15913,15920) = 253334960

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Least Common Multiple of 15913 and 15920 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15913 and 15920, than apply into the LCM equation.

GCF(15913,15920) = 1
LCM(15913,15920) = ( 15913 × 15920) / 1
LCM(15913,15920) = 253334960 / 1
LCM(15913,15920) = 253334960

Least Common Multiple (LCM) of 15913 and 15920 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15913 and 15920. First we will calculate the prime factors of 15913 and 15920.

Prime Factorization of 15913

Prime factors of 15913 are 15913. Prime factorization of 15913 in exponential form is:

15913 = 159131

Prime Factorization of 15920

Prime factors of 15920 are 2, 5, 199. Prime factorization of 15920 in exponential form is:

15920 = 24 × 51 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 15913 and 15920.

LCM(15913,15920) = 159131 × 24 × 51 × 1991
LCM(15913,15920) = 253334960