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What is the Least Common Multiple of 71815 and 71822?

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 71815 and 71822 is 5157896930.

LCM(71815,71822) = 5157896930

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Least Common Multiple of 71815 and 71822 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71815 and 71822, than apply into the LCM equation.

GCF(71815,71822) = 1
LCM(71815,71822) = ( 71815 × 71822) / 1
LCM(71815,71822) = 5157896930 / 1
LCM(71815,71822) = 5157896930

Least Common Multiple (LCM) of 71815 and 71822 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71815 and 71822. First we will calculate the prime factors of 71815 and 71822.

Prime Factorization of 71815

Prime factors of 71815 are 5, 53, 271. Prime factorization of 71815 in exponential form is:

71815 = 51 × 531 × 2711

Prime Factorization of 71822

Prime factors of 71822 are 2, 35911. Prime factorization of 71822 in exponential form is:

71822 = 21 × 359111

Now multiplying the highest exponent prime factors to calculate the LCM of 71815 and 71822.

LCM(71815,71822) = 51 × 531 × 2711 × 21 × 359111
LCM(71815,71822) = 5157896930