Is 402 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 402 is composite or not first we have to find its factors.
Contents
Factors of 402:
- If we have taken numbers from 1, 2, 3…for checking factors of 402, we found that 402 has factors 1, 2, 3, 6, 67, 134, 201 and 402. Hence, we must say that 402 is a composite number.
- Thus, 402 is the composite umber.
- If we multiply 402 by 1, 2, 3 then we get the multiples of 402 which are 402, 804 and so on.
About the number 402:
- 402 has more than two factors which are 1, 2, 3, 6, 67, 134, 201 and 402 and hence it is the composite number.
- 402 is the even composite number and it is not the perfect square also.
- If we divide 402 by 1, 2, 3, 6, 67, 134, 201 and 402 then we get remainder as zero. Hence, 1, 2, 3, 6, 67, 134, 201 and 402 are the factors of 402.
Note:
- 402 is not the perfect square.
- Factors of 402: 1, 2, 3, 6, 67, 134, 201 and 402
- Prime factors of 402: 2, 3, 67
Conclusion:
- 402 is the composite number which has factors 1, 2, 3, 6, 67, 134, 201 and 402
- And hence, 402 is not the prime number.
Multiple Choice Questions:
1) 402 is a
a) Prime number
b) Odd number
c) Composite number
d) Both b and c
Ans: c) composite number
2) The non-prime factors of a composite number 402 are
a) 2
b) 2, 3, 67
c) 1, 6, 134, 201 and 402
d) 1, 2, 3, 6, 67, 134, 201 and 402
Ans: c) 1, 6, 134, 201 and 402
3) 402 is the composite number because
a) It has two factors
b) More than two factors
c) Divisible by 2
d) Both b and c
Ans: b) more than two factors