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What is the Least Common Multiple of 7230 and 7239?

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 7230 and 7239 is 17445990.

LCM(7230,7239) = 17445990

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Least Common Multiple of 7230 and 7239 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7230 and 7239, than apply into the LCM equation.

GCF(7230,7239) = 3
LCM(7230,7239) = ( 7230 × 7239) / 3
LCM(7230,7239) = 52337970 / 3
LCM(7230,7239) = 17445990

Least Common Multiple (LCM) of 7230 and 7239 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7230 and 7239. First we will calculate the prime factors of 7230 and 7239.

Prime Factorization of 7230

Prime factors of 7230 are 2, 3, 5, 241. Prime factorization of 7230 in exponential form is:

7230 = 21 × 31 × 51 × 2411

Prime Factorization of 7239

Prime factors of 7239 are 3, 19, 127. Prime factorization of 7239 in exponential form is:

7239 = 31 × 191 × 1271

Now multiplying the highest exponent prime factors to calculate the LCM of 7230 and 7239.

LCM(7230,7239) = 21 × 31 × 51 × 2411 × 191 × 1271
LCM(7230,7239) = 17445990