Is 878 is a composite number or not ?
- As we already know that, the number having factors 1 and the number itself is the prime number.
- And numbers having more than these two factors are the composite numbers.
- To check whether the number 878 is composite or not first we have to find its factors.
Contents
Factors of 878:
- If we have taken numbers from 1, 2, 3…for checking factors of 878, we found that 878 has factors 1, 2, 439 and 878. Hence, we must say that 878 is a composite number.
- Thus, 878 is the composite umber.
- If we multiply 878 by 1, 2, 3 then we get the multiples of 878 which are 878, 1756 and so on.
About the number 878:
- 878 has more than two factors which are 1, 2, 439 and 878 and hence it is the composite number.
- 878 is the even composite number and it is not the perfect square also.
- If we divide 878 by 1, 2, 439 and 878 then we get remainder as zero. Hence, 1, 2, 439 and 878 are the factors of 878.
Note:
- 878 is not the perfect square.
- Factors of 878: 1, 2, 439 and 878
- Prime factors of 878: 2, 439
Conclusion:
- 878 is the composite number which has factors 1, 2, 439 and 878
- And hence, 878 is not the prime number.
Multiple Choice Questions:
1) 878 is a
a) Odd number
b) Prime number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The prime factors of a composite number 878 are
a) 1
b) 2, 439
c) 1 and 878
d) 1, 2, 439 and 878
Ans: b) 2, 439
3) 878 is the composite number because
a) It has factors 1, 2, 439 and 878
b) It has only prime factors
c) Divisible by 2
d) Both a and b
Ans: a) It has factors 1, 2, 439 and 878