Is 470 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 470 is composite or not first we have to find its factors.
Contents
Factors of 470:
- If we have taken numbers from 1, 2, 3…for checking factors of 470, we found that 470 has factors 1, 2, 5, 10, 47, 94, 235 and 470. Hence, we must say that 470 is a composite number.
- Thus, 470 is the composite umber.
- If we multiply 470 by 1, 2, 3 then we get the multiples of 470 which are 470, 940 and so on.
About the number 470:
- 470 has more than two factors which are 1, 2, 5, 10, 47, 94, 235 and 470 and hence it is the composite number.
- 470 is the even composite number and it is not the perfect square also.
- If we divide 470 by 1, 2, 5, 10, 47, 94, 235 and 470 then we get remainder as zero. Hence, 1, 2, 5, 10, 47, 94, 235 and 470 are the factors of 470.
Note:
- 470 is not the perfect square.
- Factors of 470: 1, 2, 5, 10, 47, 94, 235 and 470
- Prime factors of 470: 2, 5, 47
Conclusion:
- 470 is the composite number which has factors 1, 2, 5, 10, 47, 94, 235 and 470
- And hence, 470 is not the prime number.
Multiple Choice Questions:
1) 470 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 470 are
a) 2
b) 2, 5, 47
c) 1, 10, 94, 235 and 470
d) 1, 2, 5, 10, 47, 94, 235 and 470
Ans: c) 1, 10, 94, 235 and 470
3) 470 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