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What is the Least Common Multiple of 85561 and 85574?

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 85561 and 85574 is 7321797014.

LCM(85561,85574) = 7321797014

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Least Common Multiple of 85561 and 85574 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85561 and 85574, than apply into the LCM equation.

GCF(85561,85574) = 1
LCM(85561,85574) = ( 85561 × 85574) / 1
LCM(85561,85574) = 7321797014 / 1
LCM(85561,85574) = 7321797014

Least Common Multiple (LCM) of 85561 and 85574 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85561 and 85574. First we will calculate the prime factors of 85561 and 85574.

Prime Factorization of 85561

Prime factors of 85561 are 7, 17, 719. Prime factorization of 85561 in exponential form is:

85561 = 71 × 171 × 7191

Prime Factorization of 85574

Prime factors of 85574 are 2, 42787. Prime factorization of 85574 in exponential form is:

85574 = 21 × 427871

Now multiplying the highest exponent prime factors to calculate the LCM of 85561 and 85574.

LCM(85561,85574) = 71 × 171 × 7191 × 21 × 427871
LCM(85561,85574) = 7321797014