hommework help me!!!!!!!!!!!!!!?

Question

which is NOT a factor of 47,311? is it 11,17,19,or 23

Answer 1

Have you tried dividing 47,311 by each of the numbers?

47,311 / 11 = 4,301 (no remainder, so it is a factor)
47,311 / 17 = 2,783 (no remainder, so it is a factor)
47,311 / 19 = 2,490 (remainder 1, NOT a factor)
47,311 / 23 = 2,047 (no remainder, so it is a factor)

19 is NOT a factor of 47,311

Answer 2

a factor is a number that divides evenly into the number in question. Take 47311 and divide it by each number, the one that has decimals is not a factor.

Hope this helps!