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What is the Least Common Multiple of 407 and 413?

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 407 and 413 is 168091.

LCM(407,413) = 168091

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Least Common Multiple of 407 and 413 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 407 and 413, than apply into the LCM equation.

GCF(407,413) = 1
LCM(407,413) = ( 407 × 413) / 1
LCM(407,413) = 168091 / 1
LCM(407,413) = 168091

Least Common Multiple (LCM) of 407 and 413 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 407 and 413. First we will calculate the prime factors of 407 and 413.

Prime Factorization of 407

Prime factors of 407 are 11, 37. Prime factorization of 407 in exponential form is:

407 = 111 × 371

Prime Factorization of 413

Prime factors of 413 are 7, 59. Prime factorization of 413 in exponential form is:

413 = 71 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 407 and 413.

LCM(407,413) = 111 × 371 × 71 × 591
LCM(407,413) = 168091