What is the Least Common Multiple of 16783 and 16790?
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 16783 and 16790 is 281786570.
LCM(16783,16790) = 281786570
Least Common Multiple of 16783 and 16790 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16783 and 16790, than apply into the LCM equation.
GCF(16783,16790) = 1
LCM(16783,16790) = ( 16783 × 16790) / 1
LCM(16783,16790) = 281786570 / 1
LCM(16783,16790) = 281786570
Least Common Multiple (LCM) of 16783 and 16790 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 16783 and 16790. First we will calculate the prime factors of 16783 and 16790.
Prime Factorization of 16783
Prime factors of 16783 are 13, 1291. Prime factorization of 16783 in exponential form is:
16783 = 131 × 12911
Prime Factorization of 16790
Prime factors of 16790 are 2, 5, 23, 73. Prime factorization of 16790 in exponential form is:
16790 = 21 × 51 × 231 × 731
Now multiplying the highest exponent prime factors to calculate the LCM of 16783 and 16790.
LCM(16783,16790) = 131 × 12911 × 21 × 51 × 231 × 731
LCM(16783,16790) = 281786570
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