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What is the Least Common Multiple of 65978 and 65995?

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 65978 and 65995 is 4354218110.

LCM(65978,65995) = 4354218110

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Least Common Multiple of 65978 and 65995 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65978 and 65995, than apply into the LCM equation.

GCF(65978,65995) = 1
LCM(65978,65995) = ( 65978 × 65995) / 1
LCM(65978,65995) = 4354218110 / 1
LCM(65978,65995) = 4354218110

Least Common Multiple (LCM) of 65978 and 65995 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65978 and 65995. First we will calculate the prime factors of 65978 and 65995.

Prime Factorization of 65978

Prime factors of 65978 are 2, 11, 2999. Prime factorization of 65978 in exponential form is:

65978 = 21 × 111 × 29991

Prime Factorization of 65995

Prime factors of 65995 are 5, 67, 197. Prime factorization of 65995 in exponential form is:

65995 = 51 × 671 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 65978 and 65995.

LCM(65978,65995) = 21 × 111 × 29991 × 51 × 671 × 1971
LCM(65978,65995) = 4354218110