To find all the divisors of the number 22,321,233:
- 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 22,321,233:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
22,321,233 = 32 × 112 × 103 × 199
22,321,233 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) × (2 + 1) × (1 + 1) × (1 + 1) = 3 × 3 × 2 × 2 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 22,321,233
- 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 =
3
composite factor = 3
2 =
9
prime factor =
11
composite factor = 3 × 11 =
33
composite factor = 3
2 × 11 =
99
prime factor =
103
composite factor = 11
2 =
121
prime factor =
199
composite factor = 3 × 103 =
309
composite factor = 3 × 11
2 =
363
composite factor = 3 × 199 =
597
composite factor = 3
2 × 103 =
927
composite factor = 3
2 × 11
2 =
1,089
composite factor = 11 × 103 =
1,133
composite factor = 3
2 × 199 =
1,791
composite factor = 11 × 199 =
2,189
composite factor = 3 × 11 × 103 =
3,399
This list continues below...
... This list continues from above
composite factor = 3 × 11 × 199 =
6,567
composite factor = 3
2 × 11 × 103 =
10,197
composite factor = 11
2 × 103 =
12,463
composite factor = 3
2 × 11 × 199 =
19,701
composite factor = 103 × 199 =
20,497
composite factor = 11
2 × 199 =
24,079
composite factor = 3 × 11
2 × 103 =
37,389
composite factor = 3 × 103 × 199 =
61,491
composite factor = 3 × 11
2 × 199 =
72,237
composite factor = 3
2 × 11
2 × 103 =
112,167
composite factor = 3
2 × 103 × 199 =
184,473
composite factor = 3
2 × 11
2 × 199 =
216,711
composite factor = 11 × 103 × 199 =
225,467
composite factor = 3 × 11 × 103 × 199 =
676,401
composite factor = 3
2 × 11 × 103 × 199 =
2,029,203
composite factor = 11
2 × 103 × 199 =
2,480,137
composite factor = 3 × 11
2 × 103 × 199 =
7,440,411
composite factor = 3
2 × 11
2 × 103 × 199 =
22,321,233
36 factors (divisors)
What times what is 22,321,233?
What number multiplied by what number equals 22,321,233?
All the combinations of any two natural numbers whose product equals 22,321,233.
1 × 22,321,233 = 22,321,233
3 × 7,440,411 = 22,321,233
9 × 2,480,137 = 22,321,233
11 × 2,029,203 = 22,321,233
33 × 676,401 = 22,321,233
99 × 225,467 = 22,321,233
103 × 216,711 = 22,321,233
121 × 184,473 = 22,321,233
199 × 112,167 = 22,321,233
309 × 72,237 = 22,321,233
363 × 61,491 = 22,321,233
597 × 37,389 = 22,321,233
927 × 24,079 = 22,321,233
1,089 × 20,497 = 22,321,233
1,133 × 19,701 = 22,321,233
1,791 × 12,463 = 22,321,233
2,189 × 10,197 = 22,321,233
3,399 × 6,567 = 22,321,233
18 unique multiplications The final answer:
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