Factorize | R Documentation |
Compute the prime factorization(s) of integer(s) n
.
Factorize(n)
n |
vector of integers to factorize. |
works via Primes
, currently in a cheap way, sub-optimal
for large composite n
.
A named list
of the same length as n
,
each element a 2-column matrix with column "p"
the prime
factors and column~"m"
their respective exponents (or
multiplities), i.e., for a prime number n
, the resulting matrix
is cbind(p = n, m = 1)
.
Martin Maechler, Jan. 1996.
GCD
, LCM
, Primes
, IsPrime
, Divisors
For factorization of moderately or really large numbers, see the gmp
package, and its factorize()
(which is ~20x faster!).
Factorize(47)
Factorize(seq(101, 120, by=2))
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