What is the Least Common Multiple of 66620 and 66628?
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 66620 and 66628 is 1109689340.
LCM(66620,66628) = 1109689340
Least Common Multiple of 66620 and 66628 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66620 and 66628, than apply into the LCM equation.
GCF(66620,66628) = 4
LCM(66620,66628) = ( 66620 × 66628) / 4
LCM(66620,66628) = 4438757360 / 4
LCM(66620,66628) = 1109689340
Least Common Multiple (LCM) of 66620 and 66628 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 66620 and 66628. First we will calculate the prime factors of 66620 and 66628.
Prime Factorization of 66620
Prime factors of 66620 are 2, 5, 3331. Prime factorization of 66620 in exponential form is:
66620 = 22 × 51 × 33311
Prime Factorization of 66628
Prime factors of 66628 are 2, 16657. Prime factorization of 66628 in exponential form is:
66628 = 22 × 166571
Now multiplying the highest exponent prime factors to calculate the LCM of 66620 and 66628.
LCM(66620,66628) = 22 × 51 × 33311 × 166571
LCM(66620,66628) = 1109689340
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