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What is the Least Common Multiple of 85890 and 85901?

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 85890 and 85901 is 7378036890.

LCM(85890,85901) = 7378036890

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Least Common Multiple of 85890 and 85901 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85890 and 85901, than apply into the LCM equation.

GCF(85890,85901) = 1
LCM(85890,85901) = ( 85890 × 85901) / 1
LCM(85890,85901) = 7378036890 / 1
LCM(85890,85901) = 7378036890

Least Common Multiple (LCM) of 85890 and 85901 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85890 and 85901. First we will calculate the prime factors of 85890 and 85901.

Prime Factorization of 85890

Prime factors of 85890 are 2, 3, 5, 7, 409. Prime factorization of 85890 in exponential form is:

85890 = 21 × 31 × 51 × 71 × 4091

Prime Factorization of 85901

Prime factors of 85901 are 17, 31, 163. Prime factorization of 85901 in exponential form is:

85901 = 171 × 311 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 85890 and 85901.

LCM(85890,85901) = 21 × 31 × 51 × 71 × 4091 × 171 × 311 × 1631
LCM(85890,85901) = 7378036890