Is 722 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 722 is composite or not first we have to find its factors.
Contents
Factors of 722:
- If we have taken numbers from 1, 2, 3…for checking factors of 722, we found that 722 has factors 1, 2, 19, 38, 361 and 722. Hence, we must say that 722 is a composite number.
- Thus, 722 is the composite umber.
- If we multiply 722 by 1, 2, 3 then we get the multiples of 722 which are 722, 1444 and so on.
About the number 722:
- 722 has more than two factors which are 1, 2, 19, 38, 361 and 722 and hence it is the composite number.
- 722 is the even composite number and it is not the perfect square also.
- If we divide 722 by 1, 2, 19, 38, 361 and 722 then we get remainder as zero. Hence, 1, 2, 19, 38, 361 and 722 are the factors of 722.
Note:
- 722 is not the perfect square.
- Factors of 722: 1, 2, 19, 38, 361 and 722
- Prime factors of 722: 2, 19
Conclusion:
- 722 is the composite number which has factors 1, 2, 19, 38, 361 and 722
- And hence, 722 is not the prime number.
Multiple Choice Questions:
1) 722 is a
a) perfect square number
b) Even number
c) Composite number
d) Both b and c
Ans: d) both b and c
2) The composite factors of a composite number 722 are
a) 38, 361, 722
b) 2, 19
c) 1, 38, 361 and 722
d) 1, 2, 19, 38, 361 and 722
Ans: a) 38, 361, 722
3) 722 is the composite number because
a) It has factors 1, 2, 19, 38, 361 and 722
b) More than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b