Is 670 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 670 is composite or not first we have to find its factors.
Contents
Factors of 670:
- If we have taken numbers from 1, 2, 3…for checking factors of 670, we found that 670 has factors 1, 2, 5, 10, 67, 134, 335 and 670. Hence, we must say that 670 is a composite number.
- Thus, 670 is the composite umber.
- If we multiply 670 by 1, 2, 3 then we get the multiples of 670 which are 670, 1340 and so on.
About the number 670:
- 670 has more than two factors which are 1, 2, 5, 10, 67, 134, 335 and 670 and hence it is the composite number.
- 670 is the even composite number and it is not the perfect square also.
- If we divide 670 by 1, 2, 5, 10, 67, 134, 335 and 670 then we get remainder as zero. Hence, 1, 2, 5, 10, 67, 134, 335 and 670 are the factors of 670.
Note:
- 670 is not the perfect square.
- Factors of 670: 1, 2, 5, 10, 67, 134, 335 and 670
- Prime factors of 670: 2, 5, 67
Conclusion:
- 670 is the composite number which has factors 1, 2, 5, 10, 67, 134, 335 and 670
- And hence, 670 is not the prime number.
Multiple Choice Questions:
1) 670 is a
a) Not a perfect square number
b) Even number
c) Composite number
d) all
Ans: d) all
2) The prime and composite factors of a composite number 670 are
a) 1
b) 2, 5, 67
c) 1, 10, 134, 335 and 670
d) 1, 2, 5, 10, 67, 134, 335 and 670
Ans: d) 1, 2, 5, 10, 67, 134, 335 and 670
3) 670 is the even composite number because
a) It has factors 1, 2, 5, 10, 67, 134, 335 and 670
b) More than two factors
c) Divisible by 2
d) all
Ans: d) all