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What is the Least Common Multiple of 8205 and 8216?

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 8205 and 8216 is 67412280.

LCM(8205,8216) = 67412280

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Least Common Multiple of 8205 and 8216 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8205 and 8216, than apply into the LCM equation.

GCF(8205,8216) = 1
LCM(8205,8216) = ( 8205 × 8216) / 1
LCM(8205,8216) = 67412280 / 1
LCM(8205,8216) = 67412280

Least Common Multiple (LCM) of 8205 and 8216 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8205 and 8216. First we will calculate the prime factors of 8205 and 8216.

Prime Factorization of 8205

Prime factors of 8205 are 3, 5, 547. Prime factorization of 8205 in exponential form is:

8205 = 31 × 51 × 5471

Prime Factorization of 8216

Prime factors of 8216 are 2, 13, 79. Prime factorization of 8216 in exponential form is:

8216 = 23 × 131 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 8205 and 8216.

LCM(8205,8216) = 31 × 51 × 5471 × 23 × 131 × 791
LCM(8205,8216) = 67412280