What is the Least Common Multiple of 521 and 540?
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 521 and 540 is 281340.
LCM(521,540) = 281340
Least Common Multiple of 521 and 540 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 521 and 540, than apply into the LCM equation.
GCF(521,540) = 1
LCM(521,540) = ( 521 × 540) / 1
LCM(521,540) = 281340 / 1
LCM(521,540) = 281340
Least Common Multiple (LCM) of 521 and 540 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 521 and 540. First we will calculate the prime factors of 521 and 540.
Prime Factorization of 521
Prime factors of 521 are 521. Prime factorization of 521 in exponential form is:
521 = 5211
Prime Factorization of 540
Prime factors of 540 are 2, 3, 5. Prime factorization of 540 in exponential form is:
540 = 22 × 33 × 51
Now multiplying the highest exponent prime factors to calculate the LCM of 521 and 540.
LCM(521,540) = 5211 × 22 × 33 × 51
LCM(521,540) = 281340
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