To find all the divisors of the number 262,224:
- 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 262,224:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
262,224 = 24 × 33 × 607
262,224 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 = (4 + 1) × (3 + 1) × (1 + 1) = 5 × 4 × 2 = 40
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 262,224
- 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
3 =
8
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
composite factor = 2
4 =
16
composite factor = 2 × 3
2 =
18
composite factor = 2
3 × 3 =
24
composite factor = 3
3 =
27
composite factor = 2
2 × 3
2 =
36
composite factor = 2
4 × 3 =
48
composite factor = 2 × 3
3 =
54
composite factor = 2
3 × 3
2 =
72
composite factor = 2
2 × 3
3 =
108
composite factor = 2
4 × 3
2 =
144
composite factor = 2
3 × 3
3 =
216
composite factor = 2
4 × 3
3 =
432
This list continues below...
... This list continues from above
prime factor =
607
composite factor = 2 × 607 =
1,214
composite factor = 3 × 607 =
1,821
composite factor = 2
2 × 607 =
2,428
composite factor = 2 × 3 × 607 =
3,642
composite factor = 2
3 × 607 =
4,856
composite factor = 3
2 × 607 =
5,463
composite factor = 2
2 × 3 × 607 =
7,284
composite factor = 2
4 × 607 =
9,712
composite factor = 2 × 3
2 × 607 =
10,926
composite factor = 2
3 × 3 × 607 =
14,568
composite factor = 3
3 × 607 =
16,389
composite factor = 2
2 × 3
2 × 607 =
21,852
composite factor = 2
4 × 3 × 607 =
29,136
composite factor = 2 × 3
3 × 607 =
32,778
composite factor = 2
3 × 3
2 × 607 =
43,704
composite factor = 2
2 × 3
3 × 607 =
65,556
composite factor = 2
4 × 3
2 × 607 =
87,408
composite factor = 2
3 × 3
3 × 607 =
131,112
composite factor = 2
4 × 3
3 × 607 =
262,224
40 factors (divisors)
What times what is 262,224?
What number multiplied by what number equals 262,224?
All the combinations of any two natural numbers whose product equals 262,224.
1 × 262,224 = 262,224
2 × 131,112 = 262,224
3 × 87,408 = 262,224
4 × 65,556 = 262,224
6 × 43,704 = 262,224
8 × 32,778 = 262,224
9 × 29,136 = 262,224
12 × 21,852 = 262,224
16 × 16,389 = 262,224
18 × 14,568 = 262,224
24 × 10,926 = 262,224
27 × 9,712 = 262,224
36 × 7,284 = 262,224
48 × 5,463 = 262,224
54 × 4,856 = 262,224
72 × 3,642 = 262,224
108 × 2,428 = 262,224
144 × 1,821 = 262,224
216 × 1,214 = 262,224
432 × 607 = 262,224
20 unique multiplications The final answer:
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