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What is the Least Common Multiple of 71942 and 71961?

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 71942 and 71961 is 5177018262.

LCM(71942,71961) = 5177018262

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Least Common Multiple of 71942 and 71961 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71942 and 71961, than apply into the LCM equation.

GCF(71942,71961) = 1
LCM(71942,71961) = ( 71942 × 71961) / 1
LCM(71942,71961) = 5177018262 / 1
LCM(71942,71961) = 5177018262

Least Common Multiple (LCM) of 71942 and 71961 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71942 and 71961. First we will calculate the prime factors of 71942 and 71961.

Prime Factorization of 71942

Prime factors of 71942 are 2, 13, 2767. Prime factorization of 71942 in exponential form is:

71942 = 21 × 131 × 27671

Prime Factorization of 71961

Prime factors of 71961 are 3, 17, 83. Prime factorization of 71961 in exponential form is:

71961 = 31 × 172 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 71942 and 71961.

LCM(71942,71961) = 21 × 131 × 27671 × 31 × 172 × 831
LCM(71942,71961) = 5177018262