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What is the Least Common Multiple of 87285 and 87290?

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 87285 and 87290 is 1523821530.

LCM(87285,87290) = 1523821530

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Least Common Multiple of 87285 and 87290 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87285 and 87290, than apply into the LCM equation.

GCF(87285,87290) = 5
LCM(87285,87290) = ( 87285 × 87290) / 5
LCM(87285,87290) = 7619107650 / 5
LCM(87285,87290) = 1523821530

Least Common Multiple (LCM) of 87285 and 87290 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87285 and 87290. First we will calculate the prime factors of 87285 and 87290.

Prime Factorization of 87285

Prime factors of 87285 are 3, 5, 11, 23. Prime factorization of 87285 in exponential form is:

87285 = 31 × 51 × 111 × 232

Prime Factorization of 87290

Prime factors of 87290 are 2, 5, 7, 29, 43. Prime factorization of 87290 in exponential form is:

87290 = 21 × 51 × 71 × 291 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 87285 and 87290.

LCM(87285,87290) = 31 × 51 × 111 × 232 × 21 × 71 × 291 × 431
LCM(87285,87290) = 1523821530