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What is the Least Common Multiple of 87235 and 87240?

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 87235 and 87240 is 1522076280.

LCM(87235,87240) = 1522076280

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Least Common Multiple of 87235 and 87240 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87235 and 87240, than apply into the LCM equation.

GCF(87235,87240) = 5
LCM(87235,87240) = ( 87235 × 87240) / 5
LCM(87235,87240) = 7610381400 / 5
LCM(87235,87240) = 1522076280

Least Common Multiple (LCM) of 87235 and 87240 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87235 and 87240. First we will calculate the prime factors of 87235 and 87240.

Prime Factorization of 87235

Prime factors of 87235 are 5, 73, 239. Prime factorization of 87235 in exponential form is:

87235 = 51 × 731 × 2391

Prime Factorization of 87240

Prime factors of 87240 are 2, 3, 5, 727. Prime factorization of 87240 in exponential form is:

87240 = 23 × 31 × 51 × 7271

Now multiplying the highest exponent prime factors to calculate the LCM of 87235 and 87240.

LCM(87235,87240) = 51 × 731 × 2391 × 23 × 31 × 7271
LCM(87235,87240) = 1522076280