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What is the Least Common Multiple of 17765 and 17778?

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 17765 and 17778 is 315826170.

LCM(17765,17778) = 315826170

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Least Common Multiple of 17765 and 17778 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 17765 and 17778, than apply into the LCM equation.

GCF(17765,17778) = 1
LCM(17765,17778) = ( 17765 × 17778) / 1
LCM(17765,17778) = 315826170 / 1
LCM(17765,17778) = 315826170

Least Common Multiple (LCM) of 17765 and 17778 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 17765 and 17778. First we will calculate the prime factors of 17765 and 17778.

Prime Factorization of 17765

Prime factors of 17765 are 5, 11, 17, 19. Prime factorization of 17765 in exponential form is:

17765 = 51 × 111 × 171 × 191

Prime Factorization of 17778

Prime factors of 17778 are 2, 3, 2963. Prime factorization of 17778 in exponential form is:

17778 = 21 × 31 × 29631

Now multiplying the highest exponent prime factors to calculate the LCM of 17765 and 17778.

LCM(17765,17778) = 51 × 111 × 171 × 191 × 21 × 31 × 29631
LCM(17765,17778) = 315826170