What is the Least Common Multiple of 9642 and 9658?
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 9642 and 9658 is 46561218.
LCM(9642,9658) = 46561218
Least Common Multiple of 9642 and 9658 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9642 and 9658, than apply into the LCM equation.
GCF(9642,9658) = 2
LCM(9642,9658) = ( 9642 × 9658) / 2
LCM(9642,9658) = 93122436 / 2
LCM(9642,9658) = 46561218
Least Common Multiple (LCM) of 9642 and 9658 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 9642 and 9658. First we will calculate the prime factors of 9642 and 9658.
Prime Factorization of 9642
Prime factors of 9642 are 2, 3, 1607. Prime factorization of 9642 in exponential form is:
9642 = 21 × 31 × 16071
Prime Factorization of 9658
Prime factors of 9658 are 2, 11, 439. Prime factorization of 9658 in exponential form is:
9658 = 21 × 111 × 4391
Now multiplying the highest exponent prime factors to calculate the LCM of 9642 and 9658.
LCM(9642,9658) = 21 × 31 × 16071 × 111 × 4391
LCM(9642,9658) = 46561218
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