To find all the divisors of the number 275,268:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 275,268:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
275,268 = 22 × 3 × 7 × 29 × 113
275,268 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 275,268
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 3 × 7 =
21
composite factor = 2
2 × 7 =
28
prime factor =
29
composite factor = 2 × 3 × 7 =
42
composite factor = 2 × 29 =
58
composite factor = 2
2 × 3 × 7 =
84
composite factor = 3 × 29 =
87
prime factor =
113
composite factor = 2
2 × 29 =
116
composite factor = 2 × 3 × 29 =
174
composite factor = 7 × 29 =
203
composite factor = 2 × 113 =
226
composite factor = 3 × 113 =
339
composite factor = 2
2 × 3 × 29 =
348
composite factor = 2 × 7 × 29 =
406
composite factor = 2
2 × 113 =
452
This list continues below...
... This list continues from above
composite factor = 3 × 7 × 29 =
609
composite factor = 2 × 3 × 113 =
678
composite factor = 7 × 113 =
791
composite factor = 2
2 × 7 × 29 =
812
composite factor = 2 × 3 × 7 × 29 =
1,218
composite factor = 2
2 × 3 × 113 =
1,356
composite factor = 2 × 7 × 113 =
1,582
composite factor = 3 × 7 × 113 =
2,373
composite factor = 2
2 × 3 × 7 × 29 =
2,436
composite factor = 2
2 × 7 × 113 =
3,164
composite factor = 29 × 113 =
3,277
composite factor = 2 × 3 × 7 × 113 =
4,746
composite factor = 2 × 29 × 113 =
6,554
composite factor = 2
2 × 3 × 7 × 113 =
9,492
composite factor = 3 × 29 × 113 =
9,831
composite factor = 2
2 × 29 × 113 =
13,108
composite factor = 2 × 3 × 29 × 113 =
19,662
composite factor = 7 × 29 × 113 =
22,939
composite factor = 2
2 × 3 × 29 × 113 =
39,324
composite factor = 2 × 7 × 29 × 113 =
45,878
composite factor = 3 × 7 × 29 × 113 =
68,817
composite factor = 2
2 × 7 × 29 × 113 =
91,756
composite factor = 2 × 3 × 7 × 29 × 113 =
137,634
composite factor = 2
2 × 3 × 7 × 29 × 113 =
275,268
48 factors (divisors)
What times what is 275,268?
What number multiplied by what number equals 275,268?
All the combinations of any two natural numbers whose product equals 275,268.
1 × 275,268 = 275,268
2 × 137,634 = 275,268
3 × 91,756 = 275,268
4 × 68,817 = 275,268
6 × 45,878 = 275,268
7 × 39,324 = 275,268
12 × 22,939 = 275,268
14 × 19,662 = 275,268
21 × 13,108 = 275,268
28 × 9,831 = 275,268
29 × 9,492 = 275,268
42 × 6,554 = 275,268
58 × 4,746 = 275,268
84 × 3,277 = 275,268
87 × 3,164 = 275,268
113 × 2,436 = 275,268
116 × 2,373 = 275,268
174 × 1,582 = 275,268
203 × 1,356 = 275,268
226 × 1,218 = 275,268
339 × 812 = 275,268
348 × 791 = 275,268
406 × 678 = 275,268
452 × 609 = 275,268
24 unique multiplications The final answer:
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