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What is the Least Common Multiple of 15989 and 15993?

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 15989 and 15993 is 255712077.

LCM(15989,15993) = 255712077

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Least Common Multiple of 15989 and 15993 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15989 and 15993, than apply into the LCM equation.

GCF(15989,15993) = 1
LCM(15989,15993) = ( 15989 × 15993) / 1
LCM(15989,15993) = 255712077 / 1
LCM(15989,15993) = 255712077

Least Common Multiple (LCM) of 15989 and 15993 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15989 and 15993. First we will calculate the prime factors of 15989 and 15993.

Prime Factorization of 15989

Prime factors of 15989 are 59, 271. Prime factorization of 15989 in exponential form is:

15989 = 591 × 2711

Prime Factorization of 15993

Prime factors of 15993 are 3, 1777. Prime factorization of 15993 in exponential form is:

15993 = 32 × 17771

Now multiplying the highest exponent prime factors to calculate the LCM of 15989 and 15993.

LCM(15989,15993) = 591 × 2711 × 32 × 17771
LCM(15989,15993) = 255712077