What is the Least Common Multiple of 8372 and 8390?
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 8372 and 8390 is 35120540.
LCM(8372,8390) = 35120540
Least Common Multiple of 8372 and 8390 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8372 and 8390, than apply into the LCM equation.
GCF(8372,8390) = 2
LCM(8372,8390) = ( 8372 × 8390) / 2
LCM(8372,8390) = 70241080 / 2
LCM(8372,8390) = 35120540
Least Common Multiple (LCM) of 8372 and 8390 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 8372 and 8390. First we will calculate the prime factors of 8372 and 8390.
Prime Factorization of 8372
Prime factors of 8372 are 2, 7, 13, 23. Prime factorization of 8372 in exponential form is:
8372 = 22 × 71 × 131 × 231
Prime Factorization of 8390
Prime factors of 8390 are 2, 5, 839. Prime factorization of 8390 in exponential form is:
8390 = 21 × 51 × 8391
Now multiplying the highest exponent prime factors to calculate the LCM of 8372 and 8390.
LCM(8372,8390) = 22 × 71 × 131 × 231 × 51 × 8391
LCM(8372,8390) = 35120540
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