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What is the Least Common Multiple of 11975 and 11995?

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 11975 and 11995 is 28728025.

LCM(11975,11995) = 28728025

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Least Common Multiple of 11975 and 11995 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11975 and 11995, than apply into the LCM equation.

GCF(11975,11995) = 5
LCM(11975,11995) = ( 11975 × 11995) / 5
LCM(11975,11995) = 143640125 / 5
LCM(11975,11995) = 28728025

Least Common Multiple (LCM) of 11975 and 11995 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11975 and 11995. First we will calculate the prime factors of 11975 and 11995.

Prime Factorization of 11975

Prime factors of 11975 are 5, 479. Prime factorization of 11975 in exponential form is:

11975 = 52 × 4791

Prime Factorization of 11995

Prime factors of 11995 are 5, 2399. Prime factorization of 11995 in exponential form is:

11995 = 51 × 23991

Now multiplying the highest exponent prime factors to calculate the LCM of 11975 and 11995.

LCM(11975,11995) = 52 × 4791 × 23991
LCM(11975,11995) = 28728025