What is the Least Common Multiple of 16861 and 16874?
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 16861 and 16874 is 21885578.
LCM(16861,16874) = 21885578
Least Common Multiple of 16861 and 16874 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16861 and 16874, than apply into the LCM equation.
GCF(16861,16874) = 13
LCM(16861,16874) = ( 16861 × 16874) / 13
LCM(16861,16874) = 284512514 / 13
LCM(16861,16874) = 21885578
Least Common Multiple (LCM) of 16861 and 16874 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 16861 and 16874. First we will calculate the prime factors of 16861 and 16874.
Prime Factorization of 16861
Prime factors of 16861 are 13, 1297. Prime factorization of 16861 in exponential form is:
16861 = 131 × 12971
Prime Factorization of 16874
Prime factors of 16874 are 2, 11, 13, 59. Prime factorization of 16874 in exponential form is:
16874 = 21 × 111 × 131 × 591
Now multiplying the highest exponent prime factors to calculate the LCM of 16861 and 16874.
LCM(16861,16874) = 131 × 12971 × 21 × 111 × 591
LCM(16861,16874) = 21885578
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