What is the Least Common Multiple of 7833 and 7842?
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 7833 and 7842 is 20475462.
LCM(7833,7842) = 20475462
Least Common Multiple of 7833 and 7842 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7833 and 7842, than apply into the LCM equation.
GCF(7833,7842) = 3
LCM(7833,7842) = ( 7833 × 7842) / 3
LCM(7833,7842) = 61426386 / 3
LCM(7833,7842) = 20475462
Least Common Multiple (LCM) of 7833 and 7842 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 7833 and 7842. First we will calculate the prime factors of 7833 and 7842.
Prime Factorization of 7833
Prime factors of 7833 are 3, 7, 373. Prime factorization of 7833 in exponential form is:
7833 = 31 × 71 × 3731
Prime Factorization of 7842
Prime factors of 7842 are 2, 3, 1307. Prime factorization of 7842 in exponential form is:
7842 = 21 × 31 × 13071
Now multiplying the highest exponent prime factors to calculate the LCM of 7833 and 7842.
LCM(7833,7842) = 31 × 71 × 3731 × 21 × 13071
LCM(7833,7842) = 20475462
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