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What is the Least Common Multiple of 31268 and 31278?

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 31268 and 31278 is 489000252.

LCM(31268,31278) = 489000252

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Least Common Multiple of 31268 and 31278 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31268 and 31278, than apply into the LCM equation.

GCF(31268,31278) = 2
LCM(31268,31278) = ( 31268 × 31278) / 2
LCM(31268,31278) = 978000504 / 2
LCM(31268,31278) = 489000252

Least Common Multiple (LCM) of 31268 and 31278 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31268 and 31278. First we will calculate the prime factors of 31268 and 31278.

Prime Factorization of 31268

Prime factors of 31268 are 2, 7817. Prime factorization of 31268 in exponential form is:

31268 = 22 × 78171

Prime Factorization of 31278

Prime factors of 31278 are 2, 3, 13, 401. Prime factorization of 31278 in exponential form is:

31278 = 21 × 31 × 131 × 4011

Now multiplying the highest exponent prime factors to calculate the LCM of 31268 and 31278.

LCM(31268,31278) = 22 × 78171 × 31 × 131 × 4011
LCM(31268,31278) = 489000252