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What is the Least Common Multiple of 7451 and 7471?

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 7451 and 7471 is 55666421.

LCM(7451,7471) = 55666421

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Least Common Multiple of 7451 and 7471 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7451 and 7471, than apply into the LCM equation.

GCF(7451,7471) = 1
LCM(7451,7471) = ( 7451 × 7471) / 1
LCM(7451,7471) = 55666421 / 1
LCM(7451,7471) = 55666421

Least Common Multiple (LCM) of 7451 and 7471 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7451 and 7471. First we will calculate the prime factors of 7451 and 7471.

Prime Factorization of 7451

Prime factors of 7451 are 7451. Prime factorization of 7451 in exponential form is:

7451 = 74511

Prime Factorization of 7471

Prime factors of 7471 are 31, 241. Prime factorization of 7471 in exponential form is:

7471 = 311 × 2411

Now multiplying the highest exponent prime factors to calculate the LCM of 7451 and 7471.

LCM(7451,7471) = 74511 × 311 × 2411
LCM(7451,7471) = 55666421