What is the Least Common Multiple of 4704 and 4720?
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 4704 and 4720 is 1387680.
LCM(4704,4720) = 1387680
Least Common Multiple of 4704 and 4720 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4704 and 4720, than apply into the LCM equation.
GCF(4704,4720) = 16
LCM(4704,4720) = ( 4704 × 4720) / 16
LCM(4704,4720) = 22202880 / 16
LCM(4704,4720) = 1387680
Least Common Multiple (LCM) of 4704 and 4720 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 4704 and 4720. First we will calculate the prime factors of 4704 and 4720.
Prime Factorization of 4704
Prime factors of 4704 are 2, 3, 7. Prime factorization of 4704 in exponential form is:
4704 = 25 × 31 × 72
Prime Factorization of 4720
Prime factors of 4720 are 2, 5, 59. Prime factorization of 4720 in exponential form is:
4720 = 24 × 51 × 591
Now multiplying the highest exponent prime factors to calculate the LCM of 4704 and 4720.
LCM(4704,4720) = 25 × 31 × 72 × 51 × 591
LCM(4704,4720) = 1387680
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