Is 2451 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 2451 is composite or not first we have to find its factors.
Contents
Factors of 2451:
- If we have taken numbers from 1, 2, 3…for checking factors of 2451, we found that 2451 has factors 1, 3, 19, 43, 57, 129, 817 and 2451. Hence, we must say that 2451 is a composite number.
- Thus, 2451 is the composite number.
- If we multiply 2451 by 1, 2, 3 then we get the multiples of 2451 which are 2451, 4902 and so on.
2451 is a Composite number or Prime number
About the number 2451:
- 2451 has more than two factors which are 1, 3, 19, 43, 57, 129, 817 and 2451 and hence it is the composite number.
- 2451 is the odd composite number and it is not the perfect square also.
- If we divide 2451 by 1, 3, 19, 43, 57, 129, 817 and 2451 then we get remainder as zero. Hence 1, 3, 19, 43, 57, 129, 817 and 2451 are the factors of 2451
Note:
- 2451 is not the perfect square.
- Factors of 2451: 1, 3, 19, 43, 57, 129, 817 and 2451
- Prime factors of 2451: 3, 19, 43
Conclusion:
- 2451 is the composite number which has factors 1, 3, 19, 43, 57, 129, 817 and 2451.
- And hence, 2451 is not the prime number.
Multiple Choice Questions:
1) 2451 is a
a) odd number
b) Prime number
c) Composite number
d) Both a and c
Ans: d) both a and c
2) The prime factors of a composite number 2451 are
a) 1
b) 3, 19, 43
c) 1 and 2451
d) 1, 3, 19, 43, 57, 129, 817 and 2451
Ans: b) 3, 19, 43
3) 2451 is the composite number because
a) It has factors 1, 3, 19, 43, 57, 129, 817 and 2451
b) It has more than two factors
c) It is not divisible by 2
d) Both a and b
Ans: d) both a and b