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What is the Least Common Multiple of 31461 and 31472?

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 31461 and 31472 is 990140592.

LCM(31461,31472) = 990140592

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Least Common Multiple of 31461 and 31472 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31461 and 31472, than apply into the LCM equation.

GCF(31461,31472) = 1
LCM(31461,31472) = ( 31461 × 31472) / 1
LCM(31461,31472) = 990140592 / 1
LCM(31461,31472) = 990140592

Least Common Multiple (LCM) of 31461 and 31472 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31461 and 31472. First we will calculate the prime factors of 31461 and 31472.

Prime Factorization of 31461

Prime factors of 31461 are 3, 10487. Prime factorization of 31461 in exponential form is:

31461 = 31 × 104871

Prime Factorization of 31472

Prime factors of 31472 are 2, 7, 281. Prime factorization of 31472 in exponential form is:

31472 = 24 × 71 × 2811

Now multiplying the highest exponent prime factors to calculate the LCM of 31461 and 31472.

LCM(31461,31472) = 31 × 104871 × 24 × 71 × 2811
LCM(31461,31472) = 990140592