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What is the Least Common Multiple of 471 and 475?

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 471 and 475 is 223725.

LCM(471,475) = 223725

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Least Common Multiple of 471 and 475 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 471 and 475, than apply into the LCM equation.

GCF(471,475) = 1
LCM(471,475) = ( 471 × 475) / 1
LCM(471,475) = 223725 / 1
LCM(471,475) = 223725

Least Common Multiple (LCM) of 471 and 475 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 471 and 475. First we will calculate the prime factors of 471 and 475.

Prime Factorization of 471

Prime factors of 471 are 3, 157. Prime factorization of 471 in exponential form is:

471 = 31 × 1571

Prime Factorization of 475

Prime factors of 475 are 5, 19. Prime factorization of 475 in exponential form is:

475 = 52 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 471 and 475.

LCM(471,475) = 31 × 1571 × 52 × 191
LCM(471,475) = 223725