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What is the Least Common Multiple of 11515 and 11522?

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 11515 and 11522 is 18953690.

LCM(11515,11522) = 18953690

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Least Common Multiple of 11515 and 11522 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11515 and 11522, than apply into the LCM equation.

GCF(11515,11522) = 7
LCM(11515,11522) = ( 11515 × 11522) / 7
LCM(11515,11522) = 132675830 / 7
LCM(11515,11522) = 18953690

Least Common Multiple (LCM) of 11515 and 11522 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11515 and 11522. First we will calculate the prime factors of 11515 and 11522.

Prime Factorization of 11515

Prime factors of 11515 are 5, 7, 47. Prime factorization of 11515 in exponential form is:

11515 = 51 × 72 × 471

Prime Factorization of 11522

Prime factors of 11522 are 2, 7, 823. Prime factorization of 11522 in exponential form is:

11522 = 21 × 71 × 8231

Now multiplying the highest exponent prime factors to calculate the LCM of 11515 and 11522.

LCM(11515,11522) = 51 × 72 × 471 × 21 × 8231
LCM(11515,11522) = 18953690