To find all the divisors of the number 450,708:
- 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 450,708:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
450,708 = 22 × 3 × 232 × 71
450,708 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) × (2 + 1) × (1 + 1) = 3 × 2 × 3 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 450,708
- 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
composite factor = 2
2 × 3 =
12
prime factor =
23
composite factor = 2 × 23 =
46
composite factor = 3 × 23 =
69
prime factor =
71
composite factor = 2
2 × 23 =
92
composite factor = 2 × 3 × 23 =
138
composite factor = 2 × 71 =
142
composite factor = 3 × 71 =
213
composite factor = 2
2 × 3 × 23 =
276
composite factor = 2
2 × 71 =
284
composite factor = 2 × 3 × 71 =
426
composite factor = 23
2 =
529
This list continues below...
... This list continues from above
composite factor = 2
2 × 3 × 71 =
852
composite factor = 2 × 23
2 =
1,058
composite factor = 3 × 23
2 =
1,587
composite factor = 23 × 71 =
1,633
composite factor = 2
2 × 23
2 =
2,116
composite factor = 2 × 3 × 23
2 =
3,174
composite factor = 2 × 23 × 71 =
3,266
composite factor = 3 × 23 × 71 =
4,899
composite factor = 2
2 × 3 × 23
2 =
6,348
composite factor = 2
2 × 23 × 71 =
6,532
composite factor = 2 × 3 × 23 × 71 =
9,798
composite factor = 2
2 × 3 × 23 × 71 =
19,596
composite factor = 23
2 × 71 =
37,559
composite factor = 2 × 23
2 × 71 =
75,118
composite factor = 3 × 23
2 × 71 =
112,677
composite factor = 2
2 × 23
2 × 71 =
150,236
composite factor = 2 × 3 × 23
2 × 71 =
225,354
composite factor = 2
2 × 3 × 23
2 × 71 =
450,708
36 factors (divisors)
What times what is 450,708?
What number multiplied by what number equals 450,708?
All the combinations of any two natural numbers whose product equals 450,708.
1 × 450,708 = 450,708
2 × 225,354 = 450,708
3 × 150,236 = 450,708
4 × 112,677 = 450,708
6 × 75,118 = 450,708
12 × 37,559 = 450,708
23 × 19,596 = 450,708
46 × 9,798 = 450,708
69 × 6,532 = 450,708
71 × 6,348 = 450,708
92 × 4,899 = 450,708
138 × 3,266 = 450,708
142 × 3,174 = 450,708
213 × 2,116 = 450,708
276 × 1,633 = 450,708
284 × 1,587 = 450,708
426 × 1,058 = 450,708
529 × 852 = 450,708
18 unique multiplications The final answer:
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