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What is the Least Common Multiple of 31633 and 31640?

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 31633 and 31640 is 142981160.

LCM(31633,31640) = 142981160

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Least Common Multiple of 31633 and 31640 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31633 and 31640, than apply into the LCM equation.

GCF(31633,31640) = 7
LCM(31633,31640) = ( 31633 × 31640) / 7
LCM(31633,31640) = 1000868120 / 7
LCM(31633,31640) = 142981160

Least Common Multiple (LCM) of 31633 and 31640 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31633 and 31640. First we will calculate the prime factors of 31633 and 31640.

Prime Factorization of 31633

Prime factors of 31633 are 7, 4519. Prime factorization of 31633 in exponential form is:

31633 = 71 × 45191

Prime Factorization of 31640

Prime factors of 31640 are 2, 5, 7, 113. Prime factorization of 31640 in exponential form is:

31640 = 23 × 51 × 71 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 31633 and 31640.

LCM(31633,31640) = 71 × 45191 × 23 × 51 × 1131
LCM(31633,31640) = 142981160