What is the Least Common Multiple of 520 and 530?
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 520 and 530 is 27560.
LCM(520,530) = 27560
Least Common Multiple of 520 and 530 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 520 and 530, than apply into the LCM equation.
GCF(520,530) = 10
LCM(520,530) = ( 520 × 530) / 10
LCM(520,530) = 275600 / 10
LCM(520,530) = 27560
Least Common Multiple (LCM) of 520 and 530 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 520 and 530. First we will calculate the prime factors of 520 and 530.
Prime Factorization of 520
Prime factors of 520 are 2, 5, 13. Prime factorization of 520 in exponential form is:
520 = 23 × 51 × 131
Prime Factorization of 530
Prime factors of 530 are 2, 5, 53. Prime factorization of 530 in exponential form is:
530 = 21 × 51 × 531
Now multiplying the highest exponent prime factors to calculate the LCM of 520 and 530.
LCM(520,530) = 23 × 51 × 131 × 531
LCM(520,530) = 27560
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