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What is the Least Common Multiple of 41643 and 41657?

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 41643 and 41657 is 247817493.

LCM(41643,41657) = 247817493

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Least Common Multiple of 41643 and 41657 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 41643 and 41657, than apply into the LCM equation.

GCF(41643,41657) = 7
LCM(41643,41657) = ( 41643 × 41657) / 7
LCM(41643,41657) = 1734722451 / 7
LCM(41643,41657) = 247817493

Least Common Multiple (LCM) of 41643 and 41657 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 41643 and 41657. First we will calculate the prime factors of 41643 and 41657.

Prime Factorization of 41643

Prime factors of 41643 are 3, 7, 661. Prime factorization of 41643 in exponential form is:

41643 = 32 × 71 × 6611

Prime Factorization of 41657

Prime factors of 41657 are 7, 11, 541. Prime factorization of 41657 in exponential form is:

41657 = 71 × 111 × 5411

Now multiplying the highest exponent prime factors to calculate the LCM of 41643 and 41657.

LCM(41643,41657) = 32 × 71 × 6611 × 111 × 5411
LCM(41643,41657) = 247817493