Is 3621 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 3621 is composite or not first we have to find its factors.
Contents
Factors of 3621:
- If we have taken numbers from 1, 2, 3…for checking factors of 3621, we found that 3621 has factors 1, 3, 17, 51, 71, 213, 1207 and 3621. Hence, we must say that 3621 is a composite number.
- Thus, 3621 is the composite number.
- If we multiply 3621 by 1, 2, 3 then we get the multiples of 3621 which are 3621, 7242 and so on
3621 is a Composite number or Prime number
About the number 3621:
- 3621 has more than two factors which are 1, 3, 17, 51, 71, 213, 1207 and 3621 and hence it is the composite number.
- 3621 is the odd composite number and it is not the perfect square also.
- If we divide 3621 by 1, 3, 17, 51, 71, 213, 1207 and 3621 then we get remainder as zero. Hence 1, 3, 17, 51, 71, 213, 1207 and 3621 are the factors of 3621
Note:
- 3621 is not the perfect square.
- Factors of 3621:1, 3, 17, 51, 71, 213, 1207 and 3621
- Prime factors of 3621: 3, 17, 71
Conclusion:
- 3621 is the composite number which has factors 1, 3, 17, 51, 71, 213, 1207 and 3621.
- And hence, 3621 is not the prime number.
Multiple Choice Questions:
1) 3621 is a
a) odd number
b) Prime number
c) even number
d) Both a and c
Ans: a) odd number
2) The non-prime factors of a composite number 3621 are
a) 1
b) 3, 17, 71
c) 1, 3, 17, 51, 71, 213, 1207 and 3621
d) 1, 51, 213, 1207 and 3621
Ans: d)1, 51, 213, 1207 and 3621
3) 3621 is the odd composite number because
a) It has factors 1, 3, 17, 51, 71, 213, 1207 and 3621
b) It has more than two factors
c) It is not divisible by 2
d) all
Ans: d) all
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