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What is the Least Common Multiple of 78397 and 78413?

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 78397 and 78413 is 6147343961.

LCM(78397,78413) = 6147343961

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Least Common Multiple of 78397 and 78413 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78397 and 78413, than apply into the LCM equation.

GCF(78397,78413) = 1
LCM(78397,78413) = ( 78397 × 78413) / 1
LCM(78397,78413) = 6147343961 / 1
LCM(78397,78413) = 6147343961

Least Common Multiple (LCM) of 78397 and 78413 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78397 and 78413. First we will calculate the prime factors of 78397 and 78413.

Prime Factorization of 78397

Prime factors of 78397 are 11, 7127. Prime factorization of 78397 in exponential form is:

78397 = 111 × 71271

Prime Factorization of 78413

Prime factors of 78413 are 19, 4127. Prime factorization of 78413 in exponential form is:

78413 = 191 × 41271

Now multiplying the highest exponent prime factors to calculate the LCM of 78397 and 78413.

LCM(78397,78413) = 111 × 71271 × 191 × 41271
LCM(78397,78413) = 6147343961