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What is the Least Common Multiple of 1905 and 1925?

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 1905 and 1925 is 733425.

LCM(1905,1925) = 733425

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Least Common Multiple of 1905 and 1925 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1905 and 1925, than apply into the LCM equation.

GCF(1905,1925) = 5
LCM(1905,1925) = ( 1905 × 1925) / 5
LCM(1905,1925) = 3667125 / 5
LCM(1905,1925) = 733425

Least Common Multiple (LCM) of 1905 and 1925 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1905 and 1925. First we will calculate the prime factors of 1905 and 1925.

Prime Factorization of 1905

Prime factors of 1905 are 3, 5, 127. Prime factorization of 1905 in exponential form is:

1905 = 31 × 51 × 1271

Prime Factorization of 1925

Prime factors of 1925 are 5, 7, 11. Prime factorization of 1925 in exponential form is:

1925 = 52 × 71 × 111

Now multiplying the highest exponent prime factors to calculate the LCM of 1905 and 1925.

LCM(1905,1925) = 31 × 52 × 1271 × 71 × 111
LCM(1905,1925) = 733425