What is the Least Common Multiple of 66640 and 66644?
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 66640 and 66644 is 1110289040.
LCM(66640,66644) = 1110289040
Least Common Multiple of 66640 and 66644 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66640 and 66644, than apply into the LCM equation.
GCF(66640,66644) = 4
LCM(66640,66644) = ( 66640 × 66644) / 4
LCM(66640,66644) = 4441156160 / 4
LCM(66640,66644) = 1110289040
Least Common Multiple (LCM) of 66640 and 66644 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 66640 and 66644. First we will calculate the prime factors of 66640 and 66644.
Prime Factorization of 66640
Prime factors of 66640 are 2, 5, 7, 17. Prime factorization of 66640 in exponential form is:
66640 = 24 × 51 × 72 × 171
Prime Factorization of 66644
Prime factors of 66644 are 2, 16661. Prime factorization of 66644 in exponential form is:
66644 = 22 × 166611
Now multiplying the highest exponent prime factors to calculate the LCM of 66640 and 66644.
LCM(66640,66644) = 24 × 51 × 72 × 171 × 166611
LCM(66640,66644) = 1110289040
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