2007-04-26 14:06:20 · 5 answers · asked by T-bone 1 in Science & Mathematics ➔ Mathematics
A factor that is a prime number (a number that is only divisible by 1 and by itself).
In the amicable numbers 220 and 284
220's factors are 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110 (which add up to 284) but its only prime factors are 2, 5 and 11 (1 is not a prime number).
284's factors are 1, 2, 4, 71, 142 (which add up to 220) but its only prime factors are 2 and 71.
2007-04-26 14:12:24 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A prime factor is a factor than can only be divided by itself and 1.
For example the prime factors for 30
are 2, 3, 5.
2007-04-26 21:24:38 · answer #2 · answered by Robert L 7 · 0⤊ 0⤋
A factor that is prime. That is, you cannot factor down the factor anymore (other than doing 1x the factor)
the factors of 24 are
1, 2, 3, 4, 6, 8, 12, 24
Since you can factor down 6, 8, and 12
6 = 2x3
8 = 2x2x2
etc,,
prime factors are
1,2, and 3 (you cannot factor those down more)
2007-04-26 21:12:17 · answer #3 · answered by Kasturi R 2 · 0⤊ 0⤋
The factors of a number that are prime numbers
Example:
The factors of 45 are 1,3,5,9,15 and 45. Its prime factors are 3 and 5.
2007-04-26 21:15:13 · answer #4 · answered by Snow white 3 · 0⤊ 0⤋
its a number that cant be divided anymore
2007-04-26 21:12:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋