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What is the Least Common Multiple of 78217 and 78234?

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 78217 and 78234 is 359954634.

LCM(78217,78234) = 359954634

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Least Common Multiple of 78217 and 78234 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78217 and 78234, than apply into the LCM equation.

GCF(78217,78234) = 17
LCM(78217,78234) = ( 78217 × 78234) / 17
LCM(78217,78234) = 6119228778 / 17
LCM(78217,78234) = 359954634

Least Common Multiple (LCM) of 78217 and 78234 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78217 and 78234. First we will calculate the prime factors of 78217 and 78234.

Prime Factorization of 78217

Prime factors of 78217 are 17, 43, 107. Prime factorization of 78217 in exponential form is:

78217 = 171 × 431 × 1071

Prime Factorization of 78234

Prime factors of 78234 are 2, 3, 13, 17, 59. Prime factorization of 78234 in exponential form is:

78234 = 21 × 31 × 131 × 171 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 78217 and 78234.

LCM(78217,78234) = 171 × 431 × 1071 × 21 × 31 × 131 × 591
LCM(78217,78234) = 359954634