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What is the Least Common Multiple of 67983 and 67995?

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 67983 and 67995 is 1540834695.

LCM(67983,67995) = 1540834695

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Least Common Multiple of 67983 and 67995 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67983 and 67995, than apply into the LCM equation.

GCF(67983,67995) = 3
LCM(67983,67995) = ( 67983 × 67995) / 3
LCM(67983,67995) = 4622504085 / 3
LCM(67983,67995) = 1540834695

Least Common Multiple (LCM) of 67983 and 67995 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67983 and 67995. First we will calculate the prime factors of 67983 and 67995.

Prime Factorization of 67983

Prime factors of 67983 are 3, 17, 31, 43. Prime factorization of 67983 in exponential form is:

67983 = 31 × 171 × 311 × 431

Prime Factorization of 67995

Prime factors of 67995 are 3, 5, 1511. Prime factorization of 67995 in exponential form is:

67995 = 32 × 51 × 15111

Now multiplying the highest exponent prime factors to calculate the LCM of 67983 and 67995.

LCM(67983,67995) = 32 × 171 × 311 × 431 × 51 × 15111
LCM(67983,67995) = 1540834695