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What is the Least Common Multiple of 90280 and 90287?

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 90280 and 90287 is 8151110360.

LCM(90280,90287) = 8151110360

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Least Common Multiple of 90280 and 90287 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90280 and 90287, than apply into the LCM equation.

GCF(90280,90287) = 1
LCM(90280,90287) = ( 90280 × 90287) / 1
LCM(90280,90287) = 8151110360 / 1
LCM(90280,90287) = 8151110360

Least Common Multiple (LCM) of 90280 and 90287 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90280 and 90287. First we will calculate the prime factors of 90280 and 90287.

Prime Factorization of 90280

Prime factors of 90280 are 2, 5, 37, 61. Prime factorization of 90280 in exponential form is:

90280 = 23 × 51 × 371 × 611

Prime Factorization of 90287

Prime factors of 90287 are 17, 47, 113. Prime factorization of 90287 in exponential form is:

90287 = 171 × 471 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 90280 and 90287.

LCM(90280,90287) = 23 × 51 × 371 × 611 × 171 × 471 × 1131
LCM(90280,90287) = 8151110360