What is the Least Common Multiple of 253 and 260?
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 253 and 260 is 65780.
LCM(253,260) = 65780
Least Common Multiple of 253 and 260 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 253 and 260, than apply into the LCM equation.
GCF(253,260) = 1
LCM(253,260) = ( 253 × 260) / 1
LCM(253,260) = 65780 / 1
LCM(253,260) = 65780
Least Common Multiple (LCM) of 253 and 260 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 253 and 260. First we will calculate the prime factors of 253 and 260.
Prime Factorization of 253
Prime factors of 253 are 11, 23. Prime factorization of 253 in exponential form is:
253 = 111 × 231
Prime Factorization of 260
Prime factors of 260 are 2, 5, 13. Prime factorization of 260 in exponential form is:
260 = 22 × 51 × 131
Now multiplying the highest exponent prime factors to calculate the LCM of 253 and 260.
LCM(253,260) = 111 × 231 × 22 × 51 × 131
LCM(253,260) = 65780
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