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What is the Least Common Multiple of 413 and 431?

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 413 and 431 is 178003.

LCM(413,431) = 178003

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Least Common Multiple of 413 and 431 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 413 and 431, than apply into the LCM equation.

GCF(413,431) = 1
LCM(413,431) = ( 413 × 431) / 1
LCM(413,431) = 178003 / 1
LCM(413,431) = 178003

Least Common Multiple (LCM) of 413 and 431 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 413 and 431. First we will calculate the prime factors of 413 and 431.

Prime Factorization of 413

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

413 = 71 × 591

Prime Factorization of 431

Prime factors of 431 are 431. Prime factorization of 431 in exponential form is:

431 = 4311

Now multiplying the highest exponent prime factors to calculate the LCM of 413 and 431.

LCM(413,431) = 71 × 591 × 4311
LCM(413,431) = 178003