Is 1272 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 1272 is composite or not first we have to find its factors.
Contents
Factors of 1272:
- If we have taken numbers from 1, 2, 3…for checking factors of 1272, we found that 1272 has factors 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272. Hence, we must say that 1272 is a composite number.
- Thus, 1272 is the composite number.
- If we multiply 1272 by 1, 2, 3 then we get the multiples of 1272 which are 1272, 2544 and so on.
About the number 1272:
- 1272 has more than two factors which are 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272 and hence it is the composite number.
- 1272 is the even composite number and it is not the perfect square also.
- If we divide 1272 by 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272 then we get remainder as zero. Hence, 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272 are the factors of 1272.
Note:
- 1272 is not the perfect square.
- Factors of 1272: 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272
- Prime factors of 1272: 2, 3, 53
Conclusion:
- 1272 is the composite number which has factors1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272
- And hence, 1272 is not the prime number.
Multiple Choice Questions:
1) 1272 is a
a) Even number
b) Not a perfect square number
c) Composite number
d) all
Ans: d) all
2) The composite factors of a composite number 1272 are
a) 4, 6, 8, 12, 24, 106, 159, 212, 318, 424, 636 and 1272
b) 2, 3, 53
c) 1, 4, 6, 8, 12, 24, 106, 159, 212, 318, 424, 636 and 1272
d) 1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272
Ans: a) 4, 6, 8, 12, 24, 106, 159, 212, 318, 424, 636 and 1272
3) 1272 is composite number because
a) It has factors1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636 and 1272
b) It has more than two factors
c) Divisible by 2
d) Both a and b
Ans: d) both a and b