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What is the Least Common Multiple of 71490 and 71499?

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 71490 and 71499 is 1703821170.

LCM(71490,71499) = 1703821170

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Least Common Multiple of 71490 and 71499 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71490 and 71499, than apply into the LCM equation.

GCF(71490,71499) = 3
LCM(71490,71499) = ( 71490 × 71499) / 3
LCM(71490,71499) = 5111463510 / 3
LCM(71490,71499) = 1703821170

Least Common Multiple (LCM) of 71490 and 71499 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71490 and 71499. First we will calculate the prime factors of 71490 and 71499.

Prime Factorization of 71490

Prime factors of 71490 are 2, 3, 5, 2383. Prime factorization of 71490 in exponential form is:

71490 = 21 × 31 × 51 × 23831

Prime Factorization of 71499

Prime factors of 71499 are 3, 23833. Prime factorization of 71499 in exponential form is:

71499 = 31 × 238331

Now multiplying the highest exponent prime factors to calculate the LCM of 71490 and 71499.

LCM(71490,71499) = 21 × 31 × 51 × 23831 × 238331
LCM(71490,71499) = 1703821170