143
A composite number has three or more factors.
17 has no composite factors.
The factors of 121 are 1, 11, 121 The factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
1 x 143 11 x 13
143 is a composite number because it has more factors than 1 and itself. The factors of 143 are 1, 11, 13, and 143.
143 is composite because it has more than 2 factors. Any number with exactly 2 factors (1 and the number itself) is prime. The factors of 143 are 1, 11, 13, and 143.
143 is a composite number because it has more than two factors
Because it has more than two factors.
We know that 143 is a whole number and that it has to be either prime or composite because all whole numbers other than 0 and 1 are one or the other. So, in order to determine if it is prime or composite, we need to know if any numbers besides 1 and 143 are factors. 1, 11, 13, and 143 are factors so 143 is a composite number.
143 is composite.
143 is not prime. 143 = 11 * 13
33, 39, 143, 169, 429, 507, 1859, 5577
The only composite factor of 143 is 143.
composite
No because 143 doesn't have any other factors other than 143 or 1. ============================================= Another contributor contributed: Yes. 143 = 13 x 11
Composite.