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What is the Least Common Multiple of 47770 and 47785?

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 47770 and 47785 is 456537890.

LCM(47770,47785) = 456537890

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Least Common Multiple of 47770 and 47785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47770 and 47785, than apply into the LCM equation.

GCF(47770,47785) = 5
LCM(47770,47785) = ( 47770 × 47785) / 5
LCM(47770,47785) = 2282689450 / 5
LCM(47770,47785) = 456537890

Least Common Multiple (LCM) of 47770 and 47785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47770 and 47785. First we will calculate the prime factors of 47770 and 47785.

Prime Factorization of 47770

Prime factors of 47770 are 2, 5, 17, 281. Prime factorization of 47770 in exponential form is:

47770 = 21 × 51 × 171 × 2811

Prime Factorization of 47785

Prime factors of 47785 are 5, 19, 503. Prime factorization of 47785 in exponential form is:

47785 = 51 × 191 × 5031

Now multiplying the highest exponent prime factors to calculate the LCM of 47770 and 47785.

LCM(47770,47785) = 21 × 51 × 171 × 2811 × 191 × 5031
LCM(47770,47785) = 456537890