What is the Least Common Multiple of 66470 and 66486?
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 66470 and 66486 is 2209662210.
LCM(66470,66486) = 2209662210
Least Common Multiple of 66470 and 66486 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66470 and 66486, than apply into the LCM equation.
GCF(66470,66486) = 2
LCM(66470,66486) = ( 66470 × 66486) / 2
LCM(66470,66486) = 4419324420 / 2
LCM(66470,66486) = 2209662210
Least Common Multiple (LCM) of 66470 and 66486 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 66470 and 66486. First we will calculate the prime factors of 66470 and 66486.
Prime Factorization of 66470
Prime factors of 66470 are 2, 5, 17, 23. Prime factorization of 66470 in exponential form is:
66470 = 21 × 51 × 172 × 231
Prime Factorization of 66486
Prime factors of 66486 are 2, 3, 7, 1583. Prime factorization of 66486 in exponential form is:
66486 = 21 × 31 × 71 × 15831
Now multiplying the highest exponent prime factors to calculate the LCM of 66470 and 66486.
LCM(66470,66486) = 21 × 51 × 172 × 231 × 31 × 71 × 15831
LCM(66470,66486) = 2209662210
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