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What is the Least Common Multiple of 87945 and 87958?

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 87945 and 87958 is 595035870.

LCM(87945,87958) = 595035870

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Least Common Multiple of 87945 and 87958 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87945 and 87958, than apply into the LCM equation.

GCF(87945,87958) = 13
LCM(87945,87958) = ( 87945 × 87958) / 13
LCM(87945,87958) = 7735466310 / 13
LCM(87945,87958) = 595035870

Least Common Multiple (LCM) of 87945 and 87958 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87945 and 87958. First we will calculate the prime factors of 87945 and 87958.

Prime Factorization of 87945

Prime factors of 87945 are 3, 5, 11, 13, 41. Prime factorization of 87945 in exponential form is:

87945 = 31 × 51 × 111 × 131 × 411

Prime Factorization of 87958

Prime factors of 87958 are 2, 13, 17, 199. Prime factorization of 87958 in exponential form is:

87958 = 21 × 131 × 171 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 87945 and 87958.

LCM(87945,87958) = 31 × 51 × 111 × 131 × 411 × 21 × 171 × 1991
LCM(87945,87958) = 595035870