What is the Least Common Multiple of 516 and 521?
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 516 and 521 is 268836.
LCM(516,521) = 268836
Least Common Multiple of 516 and 521 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 516 and 521, than apply into the LCM equation.
GCF(516,521) = 1
LCM(516,521) = ( 516 × 521) / 1
LCM(516,521) = 268836 / 1
LCM(516,521) = 268836
Least Common Multiple (LCM) of 516 and 521 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 516 and 521. First we will calculate the prime factors of 516 and 521.
Prime Factorization of 516
Prime factors of 516 are 2, 3, 43. Prime factorization of 516 in exponential form is:
516 = 22 × 31 × 431
Prime Factorization of 521
Prime factors of 521 are 521. Prime factorization of 521 in exponential form is:
521 = 5211
Now multiplying the highest exponent prime factors to calculate the LCM of 516 and 521.
LCM(516,521) = 22 × 31 × 431 × 5211
LCM(516,521) = 268836
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