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What is the Least Common Multiple of 91985 and 91995?

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 91985 and 91995 is 1692432015.

LCM(91985,91995) = 1692432015

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Least Common Multiple of 91985 and 91995 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91985 and 91995, than apply into the LCM equation.

GCF(91985,91995) = 5
LCM(91985,91995) = ( 91985 × 91995) / 5
LCM(91985,91995) = 8462160075 / 5
LCM(91985,91995) = 1692432015

Least Common Multiple (LCM) of 91985 and 91995 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91985 and 91995. First we will calculate the prime factors of 91985 and 91995.

Prime Factorization of 91985

Prime factors of 91985 are 5, 18397. Prime factorization of 91985 in exponential form is:

91985 = 51 × 183971

Prime Factorization of 91995

Prime factors of 91995 are 3, 5, 6133. Prime factorization of 91995 in exponential form is:

91995 = 31 × 51 × 61331

Now multiplying the highest exponent prime factors to calculate the LCM of 91985 and 91995.

LCM(91985,91995) = 51 × 183971 × 31 × 61331
LCM(91985,91995) = 1692432015