What is the Least Common Multiple of 721 and 741?
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 721 and 741 is 534261.
LCM(721,741) = 534261
Least Common Multiple of 721 and 741 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 721 and 741, than apply into the LCM equation.
GCF(721,741) = 1
LCM(721,741) = ( 721 × 741) / 1
LCM(721,741) = 534261 / 1
LCM(721,741) = 534261
Least Common Multiple (LCM) of 721 and 741 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 721 and 741. First we will calculate the prime factors of 721 and 741.
Prime Factorization of 721
Prime factors of 721 are 7, 103. Prime factorization of 721 in exponential form is:
721 = 71 × 1031
Prime Factorization of 741
Prime factors of 741 are 3, 13, 19. Prime factorization of 741 in exponential form is:
741 = 31 × 131 × 191
Now multiplying the highest exponent prime factors to calculate the LCM of 721 and 741.
LCM(721,741) = 71 × 1031 × 31 × 131 × 191
LCM(721,741) = 534261
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