What is the Least Common Multiple of 530 and 545?
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 530 and 545 is 57770.
LCM(530,545) = 57770
Least Common Multiple of 530 and 545 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 530 and 545, than apply into the LCM equation.
GCF(530,545) = 5
LCM(530,545) = ( 530 × 545) / 5
LCM(530,545) = 288850 / 5
LCM(530,545) = 57770
Least Common Multiple (LCM) of 530 and 545 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 530 and 545. First we will calculate the prime factors of 530 and 545.
Prime Factorization of 530
Prime factors of 530 are 2, 5, 53. Prime factorization of 530 in exponential form is:
530 = 21 × 51 × 531
Prime Factorization of 545
Prime factors of 545 are 5, 109. Prime factorization of 545 in exponential form is:
545 = 51 × 1091
Now multiplying the highest exponent prime factors to calculate the LCM of 530 and 545.
LCM(530,545) = 21 × 51 × 531 × 1091
LCM(530,545) = 57770
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