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What is the Least Common Multiple of 42085 and 42098?

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 42085 and 42098 is 1771694330.

LCM(42085,42098) = 1771694330

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Least Common Multiple of 42085 and 42098 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42085 and 42098, than apply into the LCM equation.

GCF(42085,42098) = 1
LCM(42085,42098) = ( 42085 × 42098) / 1
LCM(42085,42098) = 1771694330 / 1
LCM(42085,42098) = 1771694330

Least Common Multiple (LCM) of 42085 and 42098 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42085 and 42098. First we will calculate the prime factors of 42085 and 42098.

Prime Factorization of 42085

Prime factors of 42085 are 5, 19, 443. Prime factorization of 42085 in exponential form is:

42085 = 51 × 191 × 4431

Prime Factorization of 42098

Prime factors of 42098 are 2, 7, 31, 97. Prime factorization of 42098 in exponential form is:

42098 = 21 × 71 × 311 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 42085 and 42098.

LCM(42085,42098) = 51 × 191 × 4431 × 21 × 71 × 311 × 971
LCM(42085,42098) = 1771694330